simple syntax update

Author: NikkiBytes

src/utils/metakg/path_finder.py

@@ -123,9 +123,9 @@ def get_paths(self, cutoff=2, api_details=False, predicate_filter=None, bte=Fals
             for subject in self.expanded_fields["subject"]:
                 for object in self.expanded_fields["object"]:
                     if subject not in self.G:
-                        return { "error": f"Source node {subject} is not found in the MetaKG" }
+                        return { "error": f"Subject node {subject} is not found in the MetaKG" }
                     if object not in self.G:
-                        return { "error": f"Target node {object} is not found in the MetaKG" }
+                        return { "error": f"Object node {object} is not found in the MetaKG" }
                     try:
                         # Check if a path exists between the subject and object
                         if nx.has_path(self.G, subject, object):