[David] was so excited to learn that her son [Brandon] got accepted into college. [Lena]'s sister [David] painted a picture for [Lena]'s mother, [Frances].
('Frances', 'Brandon')
[Lena]'s sister [David] painted a picture for [Lena]'s mother, [Frances]. [David] was so excited to learn that her son [Brandon] got accepted into college.
[{('Frances', 'grandson', 'Brandon'): [('Frances', 'daughter', 'David'), ('David', 'son', 'Brandon')]}, {('Frances', 'daughter', 'David'): [('Frances', 'daughter', 'Lena'), ('Lena', 'sister', 'David')]}]
['daughter', 'sister', 'son']