请将以下内容转换为 json 格式的数据：小黄今天完成了5公里的跑步训练，用时大约31分钟，平均配速6分12秒每公里，消耗了约600卡路里。

```json
{
    "activity": "running",
    "distance": 5,
    "unit": "kilometers",
    "duration": "31 minutes",
    "pace": "6 minutes 12 seconds per kilometer",
    "calories_burned": 600
}
```
user
```json
{
    "activity": "running",
    "distance": 5,
    "unit": "kilometers",
    "duration": "31 minutes",
    "pace": "6 minutes 12 seconds per kilometer",
    "calories_burned": 600
}
```
assistant