[Don] took his sister [Andrea] out to dinner for her birthday. [Don] went to visit his grandmother [Frances]. She always loves it when he comes over. [Andrea] was sewing a sweater for her sister [Juanita].
('Juanita', 'Frances')
[Andrea] was sewing a sweater for her sister [Juanita]. [Don] took his sister [Andrea] out to dinner for her birthday. [Don] went to visit his grandmother [Frances]. She always loves it when he comes over.
[{('Juanita', 'grandmother', 'Frances'): [('Juanita', 'brother', 'Don'), ('Don', 'grandmother', 'Frances')]}, {('Juanita', 'brother', 'Don'): [('Juanita', 'sister', 'Andrea'), ('Andrea', 'brother', 'Don')]}]
['sister', 'brother', 'grandmother']