[David] called her brother, [Francisco], up to see how he was doing after surgery. [Francisco] gave his mother [Frances] flowers on her birthday. [David] could n't wait to get off the plane to see her mother, [Marie].
('Marie', 'Frances')
[David] could n't wait to get off the plane to see her mother, [Marie]. [David] called her brother, [Francisco], up to see how he was doing after surgery. [Francisco] gave his mother [Frances] flowers on her birthday.
[{('Marie', 'grandmother', 'Frances'): [('Marie', 'mother', 'David'), ('David', 'mother', 'Frances')]}, {('David', 'mother', 'Frances'): [('David', 'brother', 'Francisco'), ('Francisco', 'mother', 'Frances')]}]
['mother', 'brother', 'mother']