Advanced Python list comprehension

Question

Given two lists:

chars = [\'ab\', \'bc\', \'ca\']
words = [\'abc\', \'bca\', \'dac\', \'dbc\', \'cba\']

how can you use list comprehensions to

Answer 1

>>> [word for word in words if all(l in chars[i] for i, l in enumerate(word))]
['abc', 'bca']