diff --git a/lightrag/operate.py b/lightrag/operate.py
index ec97a461..bdc5bbd2 100644
--- a/lightrag/operate.py
+++ b/lightrag/operate.py
@@ -320,7 +320,7 @@ async def _handle_single_entity_extraction(
     timestamp: int,
     file_path: str = "unknown_source",
 ):
-    if len(record_attributes) < 4 or "entity" not in record_attributes[0]:
+    if len(record_attributes) != 4 or "entity" not in record_attributes[0]:
         if len(record_attributes) > 1 and "entity" in record_attributes[0]:
             logger.warning(
                 f"{chunk_key}: extraction failed! only got {len(record_attributes)} feilds on entity `{record_attributes[1]}`"
@@ -391,7 +391,7 @@ async def _handle_single_relationship_extraction(
     timestamp: int,
     file_path: str = "unknown_source",
 ):
-    if len(record_attributes) < 5 or "relationship" not in record_attributes[0]:
+    if len(record_attributes) != 5 or "relationship" not in record_attributes[0]:
         if len(record_attributes) > 1 and "relationship" in record_attributes[0]:
             logger.warning(
                 f"{chunk_key}: extraction failed! only got {len(record_attributes)} fields on realtion `{record_attributes[1]}`"
@@ -885,7 +885,7 @@ async def _process_extraction_result(
             continue
 
         # Fix various forms of tuple_delimiter corruption from the LLM output using the dedicated function
-        delimiter_core = tuple_delimiter[2:-2]  # Extract "SEP" from "<|SEP|>"
+        delimiter_core = tuple_delimiter[2:-2]  # Extract "S" from "<|S|>"
         record = fix_tuple_delimiter_corruption(record, delimiter_core, tuple_delimiter)
         # change delimiter_core to lower case, and fix again
         delimiter_core = delimiter_core.lower()