input: 
  from typing import List
  
  def get_word_lists(strings: List[str]) -> List[List[str]]:
      """ Generate a list of lists of words from the input list of strings.
      Each sublist should contain all words from the corresponding string, starting
      from the first word to the last.
      >>> get_word_lists(["Hello world", "This is a test"])
      [["Hello", "world"], ["This", "is", "a", "test"]]
      """
      word_lists = []
      for string in strings:
          words = string.split(" ")
          word_lists.append(words)
      return word_lists
  
output:     word_lists = []
      for string in strings:
          words = string.split(" ")
          word_lists.append(words)
      return word_lists