Google is probably making this move to counter Microsoft Search using Encarta (it's online dictionary).

"Results": [
    {
        "TypeName": "ORG",
        "Text": "Google",
        "Start": 0,
        "End": 6
    },
    {
        "TypeName": "ORG",
        "Text": "Microsoft",
        "Start": 47,
        "End": 56
    },
    {
        "TypeName": "ORG",
        "Text": "Encarta",
        "Start": 70,
        "End": 77
    }
]