要提取日期，可以使用以下Python代码：

import json

log = '''
{
  "intent": "inquiry.today",
  "score": 0.9992725501954545,
  "domain": "default",
  "sourceEntities": [
    {
      "start": 12,
      "end": 16,
      "resolution": {
        "values": [
          {
            "timex": "2023-08-14",
            "type": "date",
            "value": "2023-08-14"
          }
        ]
      },
      "text": "today",
      "typeName": "datetimeV2.date",
      "entity": "date"
    }
  ],
  "entities": [
    {
      "start": 12,
      "end": 16,
      "len": 5,
      "accuracy": 0.95,
      "sourceText": "today",
      "utteranceText": "today",
      "entity": "date",
      "rawEntity": "datetimeV2.date",
      "resolution": {
        "type": "date",
        "timex": "2023-08-14",
        "strValue": "2023-08-14",
        "date": "2023-08-14T00:00:00.000Z"
      }
    }
  ],
  "answers": [
    {
      "answer": "Today is today"
    }
  ],
  "answer": "Today is today"
}
'''
data = json.loads(log)
resolution = data['sourceEntities'][0]['resolution']['values'][0]
date = resolution['timex']
print(f"Today is {date}")

输出结果为：Today is 2023-08-14