Update multiconer_v2.py

multiconer_v2.py

@@ -317,8 +317,9 @@ class MultiCoNER2(datasets.GeneratorBasedBuilder):
                     ner_tags = []
                 else:
                     continue
-        yield guid, {
-            "id": s_id,
-            "tokens": tokens,
-            "ner_tags": ner_tags,
-        }
+        if s_id:
+            yield guid, {
+                "id": s_id,
+                "tokens": tokens,
+                "ner_tags": ner_tags,
+            }