Update app.py

app.py

@@ -25,7 +25,7 @@ def clear_graph(api_key,graph):
   graph = []
   kg = KnowledgeGraph(api_key)
   graph.append(kg)
-  return graph,Image.new('RGB', (400, 100),(255, 255, 255))
+  return graph,None#Image.new('RGB', (400, 100),(255, 255, 255))
 
 title = "GPT-4 Knowledge Graph Generator"
 description = "Enter text to generate a knowledge graph using GPT4KG:"