```json

{

"store": [

{

"name": "寵物樂園",

"location": "北京市朝陽區(qū)某地",

"services": ["寄養(yǎng)", "洗澡", "美容"],

"price": {"寄養(yǎng)": , "洗澡": , "美容": }

},

...

]

}

```

```json

{

"training": [

{

"student_id": "",

"course": "初級急救課程",

"score": ,

"completion_date": "--"

},

...

]

}

```

```json

{

"market": [

{

"supply_id": "",

"demand_id": "",

"power_volume": ,

"price": ,

"trade_time": "-- ::"

},

...

]

}

```

```json

{

"user": [

{

"id": "",

"game": "王者榮耀",

"level": ,

"resource": {"cpu": , "memory": },

"last_play_time": "-- ::"

},

...

]

}

```