[Tony]'s wife [Rosetta] and his mother [Theresa] went tanning on the beach last weekend.
('Rosetta', 'Theresa')
[Tony]'s wife [Rosetta] and his mother [Theresa] went tanning on the beach last weekend.
[{('Rosetta', 'mother-in-law', 'Theresa'): [('Rosetta', 'husband', 'Tony'), ('Tony', 'mother', 'Theresa')]}]
['husband', 'mother']