;; The first three lines of this file were inserted by DrRacket. They record metadata
;; about the language level of this file in a form that our tools can easily process.
#reader(lib "htdp-beginner-reader.ss" "lang")((modname 21.1.3) (read-case-sensitive #t) (teachpacks ()) (htdp-settings #(#t constructor repeating-decimal #f #t none #f ())))
; Worked exercise 21.1.3

; A person has three parts: first and last are strings, and age is a number.
(define-struct person (first last age))
; make-person : string(first) string(last) number(age) -> person
; person-first : person -> string
; person-last : person -> string
; person-age : person -> number
; person? : anything -> boolean