[Felicia]'s grandmother, [Frances], and her brother, [Don], went to the beach last weekend. [Don]'s father, [Joshua], stayed home to work on the truck.
('Joshua', 'Frances')
[Felicia]'s grandmother, [Frances], and her brother, [Don], went to the beach last weekend. [Don]'s father, [Joshua], stayed home to work on the truck.
[{('Joshua', 'mother', 'Frances'): [('Joshua', 'son', 'Don'), ('Don', 'grandmother', 'Frances')]}, {('Don', 'grandmother', 'Frances'): [('Don', 'sister', 'Felicia'), ('Felicia', 'grandmother', 'Frances')]}]
['son', 'sister', 'grandmother']