{
        "Ford F-150": [
            {
                "year": 2007,
                "model": "Ford F-150"
            },
            {
                "year": 2007,
                "model": "Ford F-150"
            },
            {
                "year": 2007,
                "model": "Ford F-150"
            }
        ],
        "Toyota Camry": [
            {
                "year": 2011,
                "model": "Toyota Camry"
            }
        ],
        "Dodge RAM": [
            {
                "year": 2005,
                "model": "Dodge RAM"
            }
        ]
    }