def smallify_words(objects):
  return [string.lower() for string in objects]

def get_5_objects():
  while True:
    try:
      answer = input('Enter five objects separated by \';\': ').split(';')
      assert len(answer) == 5
      return answer
    except AssertionError:
      print(f'You were supposed to enter five objects, not {len(answer)}. Try again.')

def play_game():
  objects = get_5_objects()
  answer = input('What is your guess? ')
  while True:
    if answer == 'quit':
      exit(0)

    if answer in smallify_words(objects):
      print(f'Congratulations! You remembered {answer}')
      objects.remove(answer)
    else:
      print('Sorry, that was not one of the words')

    if len(objects) == 0:
      print('You did it! You remembered all the objects')
      exit(0)

    answer = input('What is your next guess? ').lower()
play_game()