[Lillian] has an amazing son. Her son [John] is very talented. [John] and his wife [Andrea] decided not to have kids.
('Andrea', 'Lillian')
[John] and his wife [Andrea] decided not to have kids. [Lillian] has an amazing son. Her son [John] is very talented.
[{('Andrea', 'mother-in-law', 'Lillian'): [('Andrea', 'husband', 'John'), ('John', 'mother', 'Lillian')]}]
['husband', 'mother']