Update app.py

app.py

@@ -274,19 +274,24 @@ class EventAnalyzer:
         ))
 
         # Adjust confidence based on entity frequency
-        cursor = self.relationship_engine.conn.execute('''
+        entity_params = [
+            *entities["people"], 
+            *entities["organizations"], 
+            *entities["locations"]
+        ]
+        
+        cursor = self.relationship_engine.conn.execute(
+            f'''
             SELECT AVG(frequency) as avg_freq 
             FROM entities 
             WHERE entity_text IN (
                 SELECT DISTINCT entity_text 
                 FROM entities 
-                WHERE entity_text IN ({})
+                WHERE entity_text IN ({','.join(['?']*len(entity_params))})
             )
-        '''.format(','.join('?' * len([
-            *entities["people"], 
-            *entities["organizations"], 
-            *entities["locations"]
-        ]))))
+            ''',
+            entity_params  # Pass parameters here
+        )
         
         avg_frequency = cursor.fetchone()[0] or 1
         frequency_boost = min(0.2, (avg_frequency - 1) * 0.05)  # Max 0.2 boost for frequency