{
    "ID1": {
        "name": "Alice",
        "role": "Speaker",
        "role_conf": "97%",
        "spatial_loc": "(x,y)",
        "spatial_conf": "100%",
        "utterance": "Hello Bob, how are you? Did you see this nice robot?"
    },
    "ID2": {
        "name": "Bob",
        "role": "Addressee",
        "role_conf": "56%",
        "spatial_loc": "(x,y)",
        "spatial_conf": "80%"
    }
}