[Francisco] bought a present for his mother [Frances]. [Don] called his mother, [Lynn], to tell her the good news of his engagement. [Lynn] gave her brother [Francisco] a new sweater for Christmas.
('Don', 'Frances')
[Don] called his mother, [Lynn], to tell her the good news of his engagement. [Lynn] gave her brother [Francisco] a new sweater for Christmas. [Francisco] bought a present for his mother [Frances].
[{('Don', 'grandmother', 'Frances'): [('Don', 'mother', 'Lynn'), ('Lynn', 'mother', 'Frances')]}, {('Lynn', 'mother', 'Frances'): [('Lynn', 'brother', 'Francisco'), ('Francisco', 'mother', 'Frances')]}]
['mother', 'brother', 'mother']