parameters: (sentence)
docstring: Prints the first and last words of the sentence.
docstring_summary: Prints the first and last words of the sentence.
docstring_tokens: Prints the first and last words of the sentence .
function: def print_first_and_last(sentence):
      """Prints the first and last words of the sentence."""
      words = break_words(sentence)
      print_first_word(words)
      print_last_word(words)
function_tokens: def print_first_and_last ( sentence ) : words = break_words ( sentence ) print_first_word ( words ) print_last_word ( words )