{
  "hummer": [
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            "3.7L L5",
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            "5.3L V8"
          ],
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            "Alpha"
          ]
        }
      ]
    },
    {
      "year": "2009",
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        {
          "name": "h2",
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            "6.2L V8 FLEX",
            "6.2L V8"
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          ]
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            "5.3L V8"
          ],
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            "Alpha"
          ]
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      ]
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    {
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          "name": "h2",
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            "6.2L V8"
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            "Alpha",
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          ]
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    {
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        {
          "name": "h2",
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            "6.2L V8"
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            "Luxury"
          ]
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          "name": "h3",
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            "X",
            "Alpha",
            "Adventure",
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            "Base"
          ]
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    {
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          "name": "h2",
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            "6.2L V8"
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            "Adventure",
            "Base",
            "Luxury"
          ]
        },
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          "name": "h3",
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            "X",
            "Alpha",
            "Adventure",
            "Luxury",
            "Base"
          ]
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      ]
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    {
      "year": "2005",
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        {
          "name": "h2",
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            "6.2L V8"
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            "Adventure",
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            "Luxury"
          ]
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      ]
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        {
          "name": "h2",
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            "6.2L V8"
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            "Adventure",
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            "Luxury"
          ]
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      ]
    },
    {
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          ],
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            "Luxury"
          ]
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      ]
    },
    {
      "year": "2002",
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          "name": "h1",
          "engines": [
            "6.5L V8"
          ],
          "submodels": [
            "Base"
          ]
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      ]
    }
  ]
}