[David] and her mother [Frances] attended a play at the theater. [Joseph]'s mom [Lynn] and his grandmother [Frances] when shopping together.
('Lynn', 'David')
[Joseph]'s mom [Lynn] and his grandmother [Frances] when shopping together. [David] and her mother [Frances] attended a play at the theater.
[{('Lynn', 'sister', 'David'): [('Lynn', 'mother', 'Frances'), ('Frances', 'daughter', 'David')]}, {('Lynn', 'mother', 'Frances'): [('Lynn', 'son', 'Joseph'), ('Joseph', 'grandmother', 'Frances')]}]
['son', 'grandmother', 'daughter']