[Tony] bought a present for his mother [Theresa]. [Rosetta] and her husband [Tony] went to catch an early movie at the theatre.
('Rosetta', 'Theresa')
[Rosetta] and her husband [Tony] went to catch an early movie at the theatre. [Tony] bought a present for his mother [Theresa].
[{('Rosetta', 'mother-in-law', 'Theresa'): [('Rosetta', 'husband', 'Tony'), ('Tony', 'mother', 'Theresa')]}]
['husband', 'mother']