input: Write a function that takes a list of strings and generates a list of lists of words from the strings. The returned list should have the first word for each string followed by following words for each string.
  def get_word_lists(strings):
      word_lists = []
      for string in strings:
          words = string.split(" ")
          word_list = []
          for i in range(len(words)):
              word_list.append(words[i:])
          word_lists.append(word_list)
      return word_lists
  
  assert get_word_lists(["Hello world", "This is a test"])==[["Hello", "world"], ["This", "is", "a", "test"]]
  assert get_word_lists(["Quick brown fox", "Jumps over the lazy dog"])==[["Quick", "brown", "fox"], ["Jumps", "over", "the", "lazy", "dog"]]
  assert get_word_lists([])==[]
  assert get_word_lists(["SingleWord"])==[["SingleWord"]]
  assert get_word_lists(["Two words", "Three more words"])==[["Two", "words"], ["Three", "more", "words"]]
output: def get_word_lists(strings):
      word_lists = []
      for string in strings:
          words = string.split(" ")
          word_lists.append(words)
      return word_lists