$foo1 = {
    a   => {
        name => 'a',
        type => 1,
        rockets => 2,
        leaves => 3
    },
    b   => {
        name => 'b',
        type => 7,
        rockets => 4,
        leaves => 1,
        samples => {
            mary => {
                name => 'mary',
                dog  => 'fifi'
            },
            john => {
                name => 'john',
                fish => 'oscar'
            }
        }
    }
};