input: def extract_words(sentence: str) -> List[str]:
      """Extracts and returns a list of words from the given sentence that contain no vowels.
      >>> extract_words("This machine learning project is challenging.")
      []
      >>> extract_words("Why does it rst tbl psh?")
      ['Why', 'does', 'it', 'rst', 'tbl', 'psh?']
      >>> extract_words("Hll thr prgrmmr, wld y pls thr way?")
      ['Hll', 'thr', 'prgrmmr,', 'wld', 'y', 'pls', 'thr', 'way?']
      """
output:     vowels = "aeiouAEIOU"
      words = sentence.split()
      result = [word for word in words if not any(char in vowels for char in word)]
      return result