diff --git a/native/jni/Android.mk b/native/jni/Android.mk
index ca6a77997..cbfced57a 100644
--- a/native/jni/Android.mk
+++ b/native/jni/Android.mk
@@ -72,16 +72,18 @@ LATIN_IME_CORE_SRC_FILES := \
         header/header_policy.cpp \
         header/header_read_write_utils.cpp \
         shortcut/shortcut_list_reading_utils.cpp \
-        dictionary_structure_with_buffer_policy_factory.cpp \
+        structure/dictionary_structure_with_buffer_policy_factory.cpp) \
+    $(addprefix suggest/policyimpl/dictionary/structure/v2/, \
+        patricia_trie_policy.cpp \
+        patricia_trie_reading_utils.cpp) \
+    $(addprefix suggest/policyimpl/dictionary/structure/v3/, \
         dynamic_patricia_trie_gc_event_listeners.cpp \
         dynamic_patricia_trie_node_reader.cpp \
         dynamic_patricia_trie_policy.cpp \
         dynamic_patricia_trie_reading_helper.cpp \
         dynamic_patricia_trie_reading_utils.cpp \
         dynamic_patricia_trie_writing_helper.cpp \
-        dynamic_patricia_trie_writing_utils.cpp \
-        patricia_trie_policy.cpp \
-        patricia_trie_reading_utils.cpp) \
+        dynamic_patricia_trie_writing_utils.cpp) \
     $(addprefix suggest/policyimpl/dictionary/utils/, \
         buffer_with_extendable_buffer.cpp \
         byte_array_utils.cpp \
diff --git a/native/jni/com_android_inputmethod_latin_BinaryDictionary.cpp b/native/jni/com_android_inputmethod_latin_BinaryDictionary.cpp
index 8f21c50ec..f623b8d9d 100644
--- a/native/jni/com_android_inputmethod_latin_BinaryDictionary.cpp
+++ b/native/jni/com_android_inputmethod_latin_BinaryDictionary.cpp
@@ -25,7 +25,7 @@
 #include "jni_common.h"
 #include "suggest/core/dictionary/dictionary.h"
 #include "suggest/core/suggest_options.h"
-#include "suggest/policyimpl/dictionary/dictionary_structure_with_buffer_policy_factory.h"
+#include "suggest/policyimpl/dictionary/structure/dictionary_structure_with_buffer_policy_factory.h"
 #include "suggest/policyimpl/dictionary/utils/dict_file_writing_utils.h"
 #include "utils/autocorrection_threshold_utils.h"
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/bigram/bigram_list_read_write_utils.cpp b/native/jni/src/suggest/policyimpl/dictionary/bigram/bigram_list_read_write_utils.cpp
index 1926b9831..de9fc9bbc 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/bigram/bigram_list_read_write_utils.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/bigram/bigram_list_read_write_utils.cpp
@@ -16,7 +16,7 @@
 
 #include "suggest/policyimpl/dictionary/bigram/bigram_list_read_write_utils.h"
 
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_utils.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_reading_utils.h"
 #include "suggest/policyimpl/dictionary/utils/byte_array_utils.h"
 #include "suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer.h"
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/bigram/dynamic_bigram_list_policy.cpp b/native/jni/src/suggest/policyimpl/dictionary/bigram/dynamic_bigram_list_policy.cpp
index b1170e251..d97501265 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/bigram/dynamic_bigram_list_policy.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/bigram/dynamic_bigram_list_policy.cpp
@@ -17,8 +17,8 @@
 #include "suggest/policyimpl/dictionary/bigram/dynamic_bigram_list_policy.h"
 
 #include "suggest/core/policy/dictionary_shortcuts_structure_policy.h"
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_node_reader.h"
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_helper.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_node_reader.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_writing_helper.h"
 #include "suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer.h"
 #include "suggest/policyimpl/dictionary/utils/forgetting_curve_utils.h"
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/bigram/dynamic_bigram_list_policy.h b/native/jni/src/suggest/policyimpl/dictionary/bigram/dynamic_bigram_list_policy.h
index 0504b59d5..5de456656 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/bigram/dynamic_bigram_list_policy.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/bigram/dynamic_bigram_list_policy.h
@@ -22,7 +22,7 @@
 #include "defines.h"
 #include "suggest/core/policy/dictionary_bigrams_structure_policy.h"
 #include "suggest/policyimpl/dictionary/bigram/bigram_list_read_write_utils.h"
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_helper.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_writing_helper.h"
 
 namespace latinime {
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/dictionary_structure_with_buffer_policy_factory.cpp b/native/jni/src/suggest/policyimpl/dictionary/structure/dictionary_structure_with_buffer_policy_factory.cpp
similarity index 88%
rename from native/jni/src/suggest/policyimpl/dictionary/dictionary_structure_with_buffer_policy_factory.cpp
rename to native/jni/src/suggest/policyimpl/dictionary/structure/dictionary_structure_with_buffer_policy_factory.cpp
index a28535fda..baa9cf142 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/dictionary_structure_with_buffer_policy_factory.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/dictionary_structure_with_buffer_policy_factory.cpp
@@ -14,13 +14,13 @@
  * limitations under the License.
  */
 
-#include "suggest/policyimpl/dictionary/dictionary_structure_with_buffer_policy_factory.h"
+#include "suggest/policyimpl/dictionary/structure/dictionary_structure_with_buffer_policy_factory.h"
 
 #include <stdint.h>
 
 #include "defines.h"
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_policy.h"
-#include "suggest/policyimpl/dictionary/patricia_trie_policy.h"
+#include "suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_policy.h"
 #include "suggest/policyimpl/dictionary/utils/format_utils.h"
 #include "suggest/policyimpl/dictionary/utils/mmapped_buffer.h"
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/dictionary_structure_with_buffer_policy_factory.h b/native/jni/src/suggest/policyimpl/dictionary/structure/dictionary_structure_with_buffer_policy_factory.h
similarity index 100%
rename from native/jni/src/suggest/policyimpl/dictionary/dictionary_structure_with_buffer_policy_factory.h
rename to native/jni/src/suggest/policyimpl/dictionary/structure/dictionary_structure_with_buffer_policy_factory.h
diff --git a/native/jni/src/suggest/policyimpl/dictionary/patricia_trie_policy.cpp b/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.cpp
similarity index 99%
rename from native/jni/src/suggest/policyimpl/dictionary/patricia_trie_policy.cpp
rename to native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.cpp
index 9921e4bba..960c1b936 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/patricia_trie_policy.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.cpp
@@ -15,12 +15,12 @@
  */
 
 
-#include "suggest/policyimpl/dictionary/patricia_trie_policy.h"
+#include "suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.h"
 
 #include "defines.h"
 #include "suggest/core/dicnode/dic_node.h"
 #include "suggest/core/dicnode/dic_node_vector.h"
-#include "suggest/policyimpl/dictionary/patricia_trie_reading_utils.h"
+#include "suggest/policyimpl/dictionary/structure/v2/patricia_trie_reading_utils.h"
 #include "suggest/policyimpl/dictionary/utils/probability_utils.h"
 
 namespace latinime {
diff --git a/native/jni/src/suggest/policyimpl/dictionary/patricia_trie_policy.h b/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.h
similarity index 100%
rename from native/jni/src/suggest/policyimpl/dictionary/patricia_trie_policy.h
rename to native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_policy.h
diff --git a/native/jni/src/suggest/policyimpl/dictionary/patricia_trie_reading_utils.cpp b/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_reading_utils.cpp
similarity index 98%
rename from native/jni/src/suggest/policyimpl/dictionary/patricia_trie_reading_utils.cpp
rename to native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_reading_utils.cpp
index 7df55815f..82b3593c8 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/patricia_trie_reading_utils.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_reading_utils.cpp
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-#include "suggest/policyimpl/dictionary/patricia_trie_reading_utils.h"
+#include "suggest/policyimpl/dictionary/structure/v2/patricia_trie_reading_utils.h"
 
 #include "defines.h"
 #include "suggest/policyimpl/dictionary/utils/byte_array_utils.h"
diff --git a/native/jni/src/suggest/policyimpl/dictionary/patricia_trie_reading_utils.h b/native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_reading_utils.h
similarity index 100%
rename from native/jni/src/suggest/policyimpl/dictionary/patricia_trie_reading_utils.h
rename to native/jni/src/suggest/policyimpl/dictionary/structure/v2/patricia_trie_reading_utils.h
diff --git a/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_gc_event_listeners.cpp b/native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_gc_event_listeners.cpp
similarity index 98%
rename from native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_gc_event_listeners.cpp
rename to native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_gc_event_listeners.cpp
index 5724c5d88..126b7681e 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_gc_event_listeners.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_gc_event_listeners.cpp
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_gc_event_listeners.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_gc_event_listeners.h"
 
 #include "suggest/core/policy/dictionary_header_structure_policy.h"
 #include "suggest/policyimpl/dictionary/utils/forgetting_curve_utils.h"
diff --git a/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_gc_event_listeners.h b/native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_gc_event_listeners.h
similarity index 96%
rename from native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_gc_event_listeners.h
rename to native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_gc_event_listeners.h
index 9755120b0..ab59cc645 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_gc_event_listeners.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_gc_event_listeners.h
@@ -21,9 +21,9 @@
 
 #include "defines.h"
 #include "suggest/policyimpl/dictionary/bigram/dynamic_bigram_list_policy.h"
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_helper.h"
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_helper.h"
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_utils.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_reading_helper.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_writing_helper.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_writing_utils.h"
 #include "suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer.h"
 #include "utils/hash_map_compat.h"
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_node_reader.cpp b/native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_node_reader.cpp
similarity index 96%
rename from native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_node_reader.cpp
rename to native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_node_reader.cpp
index 2fa3111d3..4fd2484e1 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_node_reader.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_node_reader.cpp
@@ -14,11 +14,11 @@
  * limitations under the License.
  */
 
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_node_reader.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_node_reader.h"
 
 #include "suggest/core/policy/dictionary_bigrams_structure_policy.h"
 #include "suggest/core/policy/dictionary_shortcuts_structure_policy.h"
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_utils.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_reading_utils.h"
 #include "suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer.h"
 
 namespace latinime {
diff --git a/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_node_reader.h b/native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_node_reader.h
similarity index 96%
rename from native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_node_reader.h
rename to native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_node_reader.h
index 3b36d425f..fac078d0a 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_node_reader.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_node_reader.h
@@ -20,8 +20,8 @@
 #include <stdint.h>
 
 #include "defines.h"
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_utils.h"
-#include "suggest/policyimpl/dictionary/patricia_trie_reading_utils.h"
+#include "suggest/policyimpl/dictionary/structure/v2/patricia_trie_reading_utils.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_reading_utils.h"
 
 namespace latinime {
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_policy.cpp b/native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_policy.cpp
similarity index 96%
rename from native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_policy.cpp
rename to native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_policy.cpp
index 1d902d7c2..1ec4d3595 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_policy.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_policy.cpp
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_policy.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_policy.h"
 
 #include <cstdio>
 #include <cstring>
@@ -23,11 +23,11 @@
 #include "defines.h"
 #include "suggest/core/dicnode/dic_node.h"
 #include "suggest/core/dicnode/dic_node_vector.h"
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_node_reader.h"
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_helper.h"
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_utils.h"
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_helper.h"
-#include "suggest/policyimpl/dictionary/patricia_trie_reading_utils.h"
+#include "suggest/policyimpl/dictionary/structure/v2/patricia_trie_reading_utils.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_node_reader.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_reading_helper.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_reading_utils.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_writing_helper.h"
 #include "suggest/policyimpl/dictionary/utils/forgetting_curve_utils.h"
 #include "suggest/policyimpl/dictionary/utils/probability_utils.h"
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_policy.h b/native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_policy.h
similarity index 100%
rename from native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_policy.h
rename to native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_policy.h
diff --git a/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_helper.cpp b/native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_reading_helper.cpp
similarity index 99%
rename from native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_helper.cpp
rename to native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_reading_helper.cpp
index 91794266d..f3410affc 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_helper.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_reading_helper.cpp
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_helper.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_reading_helper.h"
 
 #include "suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer.h"
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_helper.h b/native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_reading_helper.h
similarity index 97%
rename from native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_helper.h
rename to native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_reading_helper.h
index 90a223934..f8d32c9cd 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_helper.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_reading_helper.h
@@ -21,9 +21,9 @@
 #include <vector>
 
 #include "defines.h"
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_node_reader.h"
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_utils.h"
-#include "suggest/policyimpl/dictionary/patricia_trie_reading_utils.h"
+#include "suggest/policyimpl/dictionary/structure/v2/patricia_trie_reading_utils.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_node_reader.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_reading_utils.h"
 
 namespace latinime {
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_utils.cpp b/native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_reading_utils.cpp
similarity index 96%
rename from native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_utils.cpp
rename to native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_reading_utils.cpp
index d68446db6..e94925365 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_utils.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_reading_utils.cpp
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_utils.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_reading_utils.h"
 
 #include "defines.h"
 #include "suggest/policyimpl/dictionary/utils/byte_array_utils.h"
diff --git a/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_utils.h b/native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_reading_utils.h
similarity index 100%
rename from native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_utils.h
rename to native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_reading_utils.h
diff --git a/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_helper.cpp b/native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_writing_helper.cpp
similarity index 97%
rename from native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_helper.cpp
rename to native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_writing_helper.cpp
index 052558bfc..e149d6371 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_helper.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_writing_helper.cpp
@@ -14,16 +14,16 @@
  * limitations under the License.
  */
 
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_helper.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_writing_helper.h"
 
 #include "suggest/policyimpl/dictionary/bigram/dynamic_bigram_list_policy.h"
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_gc_event_listeners.h"
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_node_reader.h"
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_helper.h"
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_utils.h"
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_utils.h"
+#include "suggest/policyimpl/dictionary/structure/v2/patricia_trie_reading_utils.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_gc_event_listeners.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_node_reader.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_reading_helper.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_reading_utils.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_writing_utils.h"
 #include "suggest/policyimpl/dictionary/header/header_policy.h"
-#include "suggest/policyimpl/dictionary/patricia_trie_reading_utils.h"
 #include "suggest/policyimpl/dictionary/shortcut/dynamic_shortcut_list_policy.h"
 #include "suggest/policyimpl/dictionary/utils/dict_file_writing_utils.h"
 #include "suggest/policyimpl/dictionary/utils/forgetting_curve_utils.h"
diff --git a/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_helper.h b/native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_writing_helper.h
similarity index 100%
rename from native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_helper.h
rename to native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_writing_helper.h
diff --git a/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_utils.cpp b/native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_writing_utils.cpp
similarity index 98%
rename from native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_utils.cpp
rename to native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_writing_utils.cpp
index 30ff10cd6..67733660b 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_utils.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_writing_utils.cpp
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_utils.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_writing_utils.h"
 
 #include <cstddef>
 #include <cstdlib>
diff --git a/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_utils.h b/native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_writing_utils.h
similarity index 97%
rename from native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_utils.h
rename to native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_writing_utils.h
index af76bc6b5..5654105ee 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_utils.h
+++ b/native/jni/src/suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_writing_utils.h
@@ -20,7 +20,7 @@
 #include <cstddef>
 
 #include "defines.h"
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_reading_utils.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_reading_utils.h"
 
 namespace latinime {
 
diff --git a/native/jni/src/suggest/policyimpl/dictionary/utils/dict_file_writing_utils.cpp b/native/jni/src/suggest/policyimpl/dictionary/utils/dict_file_writing_utils.cpp
index 5f781d50b..f65583ee4 100644
--- a/native/jni/src/suggest/policyimpl/dictionary/utils/dict_file_writing_utils.cpp
+++ b/native/jni/src/suggest/policyimpl/dictionary/utils/dict_file_writing_utils.cpp
@@ -20,7 +20,7 @@
 #include <cstring>
 
 #include "suggest/policyimpl/dictionary/header/header_policy.h"
-#include "suggest/policyimpl/dictionary/dynamic_patricia_trie_writing_utils.h"
+#include "suggest/policyimpl/dictionary/structure/v3/dynamic_patricia_trie_writing_utils.h"
 #include "suggest/policyimpl/dictionary/utils/buffer_with_extendable_buffer.h"
 #include "suggest/policyimpl/dictionary/utils/format_utils.h"