[Louis] and his son [Paul] went to the park to look for different kinds of birds. [Marie] and her brother [Pedro] watched TV together. [Louis] was invited to watch too, because [Marie] is his sister. [Beverly] and her son, [Paul], decorated mugs at the craft fair together.
('Beverly', 'Pedro')
[Beverly] and her son, [Paul], decorated mugs at the craft fair together. [Louis] and his son [Paul] went to the park to look for different kinds of birds. [Marie] and her brother [Pedro] watched TV together. [Louis] was invited to watch too, because [Marie] is his sister.
[{('Beverly', 'brother', 'Pedro'): [('Beverly', 'son', 'Paul'), ('Paul', 'uncle', 'Pedro')]}, {('Paul', 'uncle', 'Pedro'): [('Paul', 'father', 'Louis'), ('Louis', 'brother', 'Pedro')]}, {('Louis', 'brother', 'Pedro'): [('Louis', 'sister', 'Marie'), ('Marie', 'brother', 'Pedro')]}]
['son', 'father', 'sister', 'brother']