[Lena] took her son [Charles] to the mall to shop for school clothes. [Frances] went to visit her grandson [Charles] at his college dorm. [Frances] loved to play dress-up with her daughter [David].
('Lena', 'David')
[Lena] took her son [Charles] to the mall to shop for school clothes. [Frances] went to visit her grandson [Charles] at his college dorm. [Frances] loved to play dress-up with her daughter [David].
[{('Lena', 'sister', 'David'): [('Lena', 'mother', 'Frances'), ('Frances', 'daughter', 'David')]}, {('Lena', 'mother', 'Frances'): [('Lena', 'son', 'Charles'), ('Charles', 'grandmother', 'Frances')]}]
['son', 'grandmother', 'daughter']