[Emily] is [Nicholas] 'daughter and they go shopping at least twice a week together. [Dennis] and his wife [Emily] went to a baseball game today.
('Dennis', 'Nicholas')
[Dennis] and his wife [Emily] went to a baseball game today. [Emily] is [Nicholas] 'daughter and they go shopping at least twice a week together.
[{('Dennis', 'father-in-law', 'Nicholas'): [('Dennis', 'wife', 'Emily'), ('Emily', 'father', 'Nicholas')]}]
['wife', 'father']