var Person = {
        name: null
    };

    var Astronaut = O(Person, {
        title: null,
    });

    var crew = [
        O(Astronaut, { name: "Dave", title: "CDR" }),
        O(Astronaut, { name: "Jim", title: "LMP" }),
        O(Astronaut, { name: "Al", title: "CMP" })
    ];