stack.pop(); // 弹出无效候选值
{"user_content": "make it red", "tool_name": "change_background_color", "tool_arguments": "{\"color\": \"red\"}"}
，更多细节参见51吃瓜
UPDATE: Read the solution here
Pokémon LeafGreen
The influencer racing to save Thailand’s most endangered sea mammal
· 周杰 · 来源：user资讯