[Jennifer] was playing in the sandbox with her brother [Wayne]. [Louis] took her daughter [Jennifer] for ice cream. [Harold] watched his daughter [Marie] playing basketball. [Marie] threw the ball to her brother [Louis] who made the basket.
('Harold', 'Wayne')
[Harold] watched his daughter [Marie] playing basketball. [Marie] threw the ball to her brother [Louis] who made the basket. [Louis] took her daughter [Jennifer] for ice cream. [Jennifer] was playing in the sandbox with her brother [Wayne].
[{('Harold', 'grandson', 'Wayne'): [('Harold', 'son', 'Louis'), ('Louis', 'son', 'Wayne')]}, {('Louis', 'son', 'Wayne'): [('Louis', 'daughter', 'Jennifer'), ('Jennifer', 'brother', 'Wayne')]}, {('Harold', 'son', 'Louis'): [('Harold', 'daughter', 'Marie'), ('Marie', 'brother', 'Louis')]}]
['daughter', 'brother', 'daughter', 'brother']