[Amy] went with her daughter [Jennifer] to pick up [Jennifer]'s husband [Michael] at the airport. His flight arrived early.
('Michael', 'Amy')
[Amy] went with her daughter [Jennifer] to pick up [Jennifer]'s husband [Michael] at the airport. His flight arrived early.
[{('Michael', 'mother-in-law', 'Amy'): [('Michael', 'wife', 'Jennifer'), ('Jennifer', 'mother', 'Amy')]}]
['wife', 'mother']