Exercise 6.4.1: (back)

;; A movie is a structure where title and producer are symbols
(define-struct movie (title producer)) 


;; A boyfriend is a structure where name, hair, eyes and phone are symbols
(define-struct boyfriend (name hair eyes phone)) 


;; A cheerleader is a structure where name is a symbol and number is a number
(define-struct cheerleader (name number)) 


;; A CD is a structure where artist and title are symbols and price is a number
(define-struct CD (artist title price)) 


;; A sweater is a structure where material and producer are symbols and size is a number
(define-struct sweater (material size producer))