%pets = (
    "Thompson" => {
        "Bill" => {
            dogs => [
                {
                    colors => ["black"],
                },
            ],
            cats => [
                {
                    colors => ["brown"],
                },
                {
                    colors => ["white"],
                },
            ],
            hamsters => [
                {
                    colors => ["black"]
                },
            ],
        },
    },
    "Owens" => {
        "Mary" => {
            cats => [
                {
                    colors => ["white"],
                },
            ],
        }
    },
);