[Glen] and her sister [Emily] decided to take a trip to Mexico together. [Nicholas] is a man with a daughter named [Emily].
('Nicholas', 'Glen')
[Nicholas] is a man with a daughter named [Emily]. [Glen] and her sister [Emily] decided to take a trip to Mexico together.
[{('Nicholas', 'son', 'Glen'): [('Nicholas', 'daughter', 'Emily'), ('Emily', 'brother', 'Glen')]}]
['daughter', 'brother']