{
    "fonts": [
        {
            "family": "Foo"
        },
        {
            "family": "math"
        },
        {
            "family": "Baz"
        }
    ],
    "tests": [
        {
            "method": "match",
            "query": {
		"family": "Bar",
		"lang": "und-zmth"
            },
            "result": {
                "family": "math",
                "lang": "und-zmth"
            }
        }
    ]
}