[Dorothy] took her daughter [Cheryl] to school, then she went shopping with her brother [Louis]. [Beverly] loves cooking for her son. His name is [Paul]. [Louis] and his son [Paul] went to the skating rink.
('Beverly', 'Cheryl')
[Beverly] loves cooking for her son. His name is [Paul]. [Louis] and his son [Paul] went to the skating rink. [Dorothy] took her daughter [Cheryl] to school, then she went shopping with her brother [Louis].
[{('Beverly', 'niece', 'Cheryl'): [('Beverly', 'sister', 'Dorothy'), ('Dorothy', 'daughter', 'Cheryl')]}, {('Beverly', 'sister', 'Dorothy'): [('Beverly', 'son', 'Paul'), ('Paul', 'aunt', 'Dorothy')]}, {('Paul', 'aunt', 'Dorothy'): [('Paul', 'father', 'Louis'), ('Louis', 'sister', 'Dorothy')]}]
['son', 'father', 'sister', 'daughter']