[Hugh] went to the park with his mother, [Frances], and his son, [Brandon]. [Brandon] and his sister [Gloria] got their mother [Gloria] a new computer for her birthday. She really liked it.
('Frances', 'Gloria')
[Hugh] went to the park with his mother, [Frances], and his son, [Brandon]. [Brandon] and his sister [Gloria] got their mother [Gloria] a new computer for her birthday. She really liked it.
[{('Frances', 'granddaughter', 'Gloria'): [('Frances', 'grandson', 'Brandon'), ('Brandon', 'sister', 'Gloria')]}, {('Frances', 'grandson', 'Brandon'): [('Frances', 'son', 'Hugh'), ('Hugh', 'son', 'Brandon')]}]
['son', 'son', 'sister']