object movie_info {
        id
        title
        length
        isNew
    }

    
    object customer {
        id
        name
        ssn
        phone
        address
        registered_at
    }



    object customer_to_movie {
            customer_id
            copy_id
    }

    customer_to_movie::copy_id -> copy::id
    customer::id <- customer_to_movie::customer_id
    copy::movie_id --> movie::id