[Frances] was babysitting her grandson [Clarence]. [Frances] and her daughter [David] went out to dinner. [Lynn]'s son called [Clarence] is good and intelligent boy
('Lynn', 'David')
[Lynn]'s son called [Clarence] is good and intelligent boy [Frances] was babysitting her grandson [Clarence]. [Frances] and her daughter [David] went out to dinner.
[{('Lynn', 'sister', 'David'): [('Lynn', 'mother', 'Frances'), ('Frances', 'daughter', 'David')]}, {('Lynn', 'mother', 'Frances'): [('Lynn', 'son', 'Clarence'), ('Clarence', 'grandmother', 'Frances')]}]
['son', 'grandmother', 'daughter']