Fixed string unmatched

app.py

@@ -106,7 +106,7 @@ def do_query(query_str, query_type):
         if res.shape[0] == 0:
             answer = "(Something wrong. No definition found.)"
         elif res.shape[0] == 1:
-            answer = f"{res["LABEL"].values[0]}-{res["FLUID"].values[0]}-{res["CATEGORY"].values[0]}"
+            answer = f"{res['LABEL'].values[0]}-{res['FLUID'].values[0]}-{res['CATEGORY'].values[0]}"
         else:
             answer=f"(Something wrong. Too many definitions, given code [{query_str}].)"
         return gr.HTML(value=answer,