input: def extract_non_vowel_words(sentence: str) -> List[str]:
      """Extract and return words from the input sentence that do not contain any vowels.
      >>> extract_non_vowel_words('This machine learning project is challenging.')
      []
      >>> extract_non_vowel_words('Dry vwls str mrphs.')
      ['Dry', 'vwls', 'str', 'mrphs.']
      """
output:     vowels = "aeiouAEIOU"
      words = sentence.split()
      non_vowel_words = [word for word in words if not any(char in vowels for char in word)]
      return non_vowel_words