[Lillian] picked up her daughter [Ann] from school early. [Timothy] was waiting patiently for his wife, [Ann].
('Timothy', 'Lillian')
[Timothy] was waiting patiently for his wife, [Ann]. [Lillian] picked up her daughter [Ann] from school early.
[{('Timothy', 'mother-in-law', 'Lillian'): [('Timothy', 'wife', 'Ann'), ('Ann', 'mother', 'Lillian')]}]
['wife', 'mother']