{
    "version": "2.0",
    "words": [
        { "sites": [[0, 0], [1, 0], [2, 0], [3, 0], [4, 0]] }
    ],
    "zones": [
        {
            "grid": {
                "x_start": 1.0,
                "y_start": 2.0,
                "x_spacing": [2.0, 2.0, 2.0, 2.0],
                "y_spacing": []
            },
            "site_buses": [
                { "src": [0, 1], "dst": [3, 4] }
            ],
            "word_buses": [],
            "words_with_site_buses": [0],
            "sites_with_word_buses": []
        }
    ],
    "zone_buses": [],
    "modes": [
        { "name": "default", "zones": [0], "bitstring_order": [] }
    ]
}