input: Write a function to extract the 2nd and 5th words from a given sentence.
  assert extract_words("The quick brown fox jumped over the lazy dog") == "quick fox"
  assert extract_words("Python is a great programming language") == "is programming"
  assert extract_words("I love to solve coding challenges") == "love solve"
output: def extract_words(sentence):
      words = sentence.split()
      return f"{words[1]} {words[4]}"