implement Create fact statistics

src/sample_efficiency_evaluation/fact_matcher.py

@@ -129,6 +129,15 @@ def index_dataset(
     def commit_index(self) -> None:
         self.writer.commit()
 
+    def convert_relation_info_dict_to_json(self, file_path: str) -> None:
+        """
+        Convert relation info dictionary to json file.
+
+        :param file_path: Path to save the json file.
+        :return:
+        """
+        utility.save_json_dict(self.entity_relation_info_dict, file_path)
+
     @staticmethod
     def _initialize_index(index_path) -> tuple[SegmentWriter, FileIndex]:
         """

src/utility/utility.py

@@ -31,3 +31,13 @@ def load_json_str(json_str: str) -> dict:
     """
     json_dict = json.loads(json_str)
     return json_dict
+
+
+def save_json_dict(json_dict: dict, json_file_path: str):
+    """
+    Save json file.
+    :param json_dict: Dictionary containing information
+    :param json_file_path: Path to json file
+    """
+    with open(json_file_path, "w", encoding="utf-8") as f:
+        json.dump(json_dict, f, indent=4)