count --Operation, one input.
     The input may be any Logo object. If the input is a list, the output
     is a number indicating the number of members in the list. (Note: only
     top-level members are counted, not members of members. The count of
     the list

          [[This is] [a list]]

     is 2, not 4.) If the input is a word, the output is the number of
     letters (or other characters) in the word. Remember that in Logo a
     number is just a particular kind of word, so the output from count can
     be manipulated like any other Logo word.