[Jennifer] and her mother [Amy] went shopping for [Jennifer]'s husband [Michael]'s birthday.
('Michael', 'Amy')
[Jennifer] and her mother [Amy] went shopping for [Jennifer]'s husband [Michael]'s birthday.
[{('Michael', 'mother-in-law', 'Amy'): [('Michael', 'wife', 'Jennifer'), ('Jennifer', 'mother', 'Amy')]}]
['wife', 'mother']