[Michael] and his wife [Jennifer] are going to be at the play. [Michael] asked his father, [Nicholas], to help him with his math homework. [Nicholas] could n't, because he was lousy at math himself.
('Jennifer', 'Nicholas')
[Michael] and his wife [Jennifer] are going to be at the play. [Michael] asked his father, [Nicholas], to help him with his math homework. [Nicholas] could n't, because he was lousy at math himself.
[{('Jennifer', 'father-in-law', 'Nicholas'): [('Jennifer', 'husband', 'Michael'), ('Michael', 'father', 'Nicholas')]}]
['husband', 'father']