This problem has a partially-completed data definition that represents a ;; workout sequence. (define-struct cardio [rest]) (define-struct strength [rest]) (define-struct flexibility [rest]) ;;! A Workout is one of: ;;! - (make-cardio Workout) ;;! - (make-strength Workout) ;;! - (make-flexibility Workout) ;;! - "done" ;;! Interpretation: A list of exercises in a long workout. ;;! Part A ;; Give three examples of Workouts. ;;! Part B ;; Write the template for Workouts