[Jerry]'s wife, [Janet], spent the evening with her mom, [Lillian].
('Jerry', 'Lillian')
[Jerry]'s wife, [Janet], spent the evening with her mom, [Lillian].
[{('Jerry', 'mother-in-law', 'Lillian'): [('Jerry', 'wife', 'Janet'), ('Janet', 'mother', 'Lillian')]}]
['wife', 'mother']