Madam, I'm Adam.
Note that punctuation and character case are ignored.
Desired behavior:
(palindrome? '(m a d a m i m a d a m)) ⇒ #t
(palindrome? '(m a d a m i m f r e d)) ⇒ #f
Note that characters are represented as names in a list.
(define palindrome?
(lambda (lst)
(equal? lst (reverse lst))))