Extract key phrases

{
    "kind": "KeyPhraseExtraction",
    "parameters": {
        "modelVersion": "latest"
    },
    "analysisInput":{
        "documents":[
            {
              "id": "1",
              "language": "en",
              "text": "You must be the change you wish 
                       to see in the world."
            },
            {
              "id": "2",
              "language": "en",
              "text": "The journey of a thousand miles 
                       begins with a single step."
            }
        ]
    }
}


{
    "kind": "KeyPhraseExtractionResults",
    "results": {
    "documents": [   
        {
         "id": "1",
         "keyPhrases": [
           "change",
           "world"
         ],
         "warnings": []
       },
       {
         "id": "2",
         "keyPhrases": [
           "miles",
           "single step",
           "journey"
         ],
         "warnings": []
       }
],
    "errors": [],
    "modelVersion": "2021-06-01"
    }
}