[Beverly] drove her son [Paul] to his soccer game. [Pedro] went out for pizza with his daughter [Annie] and his brother [Louis]. [Louis] is a man with a son named [Paul].
('Beverly', 'Annie')
[Beverly] drove her son [Paul] to his soccer game. [Louis] is a man with a son named [Paul]. [Pedro] went out for pizza with his daughter [Annie] and his brother [Louis].
[{('Beverly', 'niece', 'Annie'): [('Beverly', 'brother', 'Pedro'), ('Pedro', 'daughter', 'Annie')]}, {('Beverly', 'brother', 'Pedro'): [('Beverly', 'son', 'Paul'), ('Paul', 'uncle', 'Pedro')]}, {('Paul', 'uncle', 'Pedro'): [('Paul', 'father', 'Louis'), ('Louis', 'brother', 'Pedro')]}]
['son', 'father', 'brother', 'daughter']