[Tony] and his wife [Rosetta] decided to visit [Rosetta]'s mother [Theresa] on Sunday.
('Tony', 'Theresa')
[Tony] and his wife [Rosetta] decided to visit [Rosetta]'s mother [Theresa] on Sunday.
[{('Tony', 'mother-in-law', 'Theresa'): [('Tony', 'wife', 'Rosetta'), ('Rosetta', 'mother', 'Theresa')]}]
['wife', 'mother']