MONADIC
	"The simplest, if there are no more than one space exactly between each word,
	 the number of words is one more than the number or spaces."
	' ' == SUM 1 +;
OPERATOR @words SET.

MONADIC @.text SET
   'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'
   MONADIC
      .text
      IDENTICAL SUM;
   EACH;
OPERATOR @letters SET.