Update app.py

app.py

@@ -67,7 +67,7 @@ def generate_poem(format_type, persona, topic, progress=gr.Progress()):
     full_prompt = (
         f"### Instruction:\n"
         f"{selected_voice}\n"
-        f"{selected_constraint} Your response should only contain the {format_type}\n"
+        f"{selected_constraint} Your response should only contain the {format_type} that you generate. Nothing else.\n"
         f"The subject of the poem is: '{topic}'.\n\n"
         f"### Response:\n"
     )