请以json格式输出太阳系中行星的信息，包括名称、与太阳的距离和直径。
```json
{
  "planets": [
    {"name": "水星", "distance": "0.39天文单位", "diameter": "4880公里"},
    {"name": "金星", "distance": "0.72天文单位", "diameter": "12104公里"},
    {"name": "地球", "distance": "1天文单位", "diameter": "12742公里"},
    {"name": "火星", "distance": "1.52天文单位", "diameter": "6779公里"},
    {"name": "木星", "distance": "5.20天文单位", "diameter": "139820公里"},
    {"name": "土星", "distance": "9.58天文单位", "diameter": "116460公里"},
    {"name": "天王星", "distance": "19.22天文单位", "diameter": "50724公里"},
    {"name": "海王星", "distance": "30.05天文单位", "diameter": "49244公里"}
  ]
}
```
user
```json
{
  "planets": [
    {"name": "水星", "distance": "0.39天文单位", "diameter": "4880公里"},
    {"name": "金星", "distance": "0.72天文单位", "diameter": "12104公里"},
    {"name": "地球", "distance": "1天文单位", "diameter": "12742公里"},
    {"name": "火星", "distance": "1.52天文单位", "diameter": "6779公里"},
    {"name": "木星", "distance": "5.20天文单位", "diameter": "139820公里"},
    {"name": "土星", "distance": "9.58天文单位", "diameter": "116460公里"},
    {"name": "天王星", "distance": "19.22天文单位", "diameter": "50724公里"},
    {"name": "海王星", "distance": "30.05天文单位", "diameter": "49244公里"}
  ]
}
```
assistant