[David]'s nephew [Charles] is going with her to town. [Lena], [Martha]'s mother, was eager to plan a trip with her so she asked her brother, [Charles], for advice.
('Lena', 'David')
[Lena], [Martha]'s mother, was eager to plan a trip with her so she asked her brother, [Charles], for advice. [David]'s nephew [Charles] is going with her to town.
[{('Lena', 'sister', 'David'): [('Lena', 'son', 'Charles'), ('Charles', 'aunt', 'David')]}, {('Lena', 'son', 'Charles'): [('Lena', 'daughter', 'Martha'), ('Martha', 'brother', 'Charles')]}]
['daughter', 'brother', 'aunt']