Decompose a computational problem into smaller sub-problems amendable to implementation with functions.
Consider the following procedure.
(define ex-lst (list "short" "longword" "verylongword"))
(define short-count
(lambda (lst)
(length (filter (section <= (string-length _) 5) lst))))
Use decomposition to rewrite this code so it uses at least one meaningful helper function (more is allowed). The helper function(s) should follow the practice of having an appropriate name, parameter names, etc.