[Timmy] visited his mother, [Constance], with his wife, [Kelly].
('Kelly', 'Constance')
[Timmy] visited his mother, [Constance], with his wife, [Kelly].
[{('Kelly', 'mother-in-law', 'Constance'): [('Kelly', 'husband', 'Timmy'), ('Timmy', 'mother', 'Constance')]}]