{"th": 
    { 
    "features": {   
                    "path": {"dtype": "string", "id": null, "_type": "Value"}, 
                    "audio": {  "sampling_rate": 48000, "mono": true, "decode": true, "id": null, "_type": "Audio"}, 
                    "sentence": {"dtype": "string", "id": null, "_type": "Value"}
                }, 

    "post_processed": null, 
    "supervised_keys": null, 
    "task_templates": [{"task": "automatic-speech-recognition", 
                        "audio_file_path_column": "path", 
                        "transcription_column": "sentence"}]
    }
}