[Robert] is one of [Louise]'s brothers. They have lots of fun together. [Clarence] and his grandmother [Louise] went water skiing. [Clarence] had some trouble at first, but [Louise] taught him how to keep his balance and he soon got pretty good at it.
('Clarence', 'Robert')
[Clarence] and his grandmother [Louise] went water skiing. [Clarence] had some trouble at first, but [Louise] taught him how to keep his balance and he soon got pretty good at it. [Robert] is one of [Louise]'s brothers. They have lots of fun together.
[{('Clarence', 'grandson', 'Robert'): [('Clarence', 'granddaughter', 'Louise'), ('Louise', 'brother', 'Robert')]}]
['granddaughter', 'brother']