[Dorothy]'s husband, [Pedro], and her son [James] went fishing last weekend. [Pedro] and his sister [Marie] went to brunch today at the new diner. [Tracy] is taking her nephew [James] to the park.
('Marie', 'Tracy')
[Pedro] and his sister [Marie] went to brunch today at the new diner. [Dorothy]'s husband, [Pedro], and her son [James] went fishing last weekend. [Tracy] is taking her nephew [James] to the park.
[{('Marie', 'sister', 'Tracy'): [('Marie', 'brother', 'Pedro'), ('Pedro', 'sister', 'Tracy')]}, {('Pedro', 'sister', 'Tracy'): [('Pedro', 'son', 'James'), ('James', 'aunt', 'Tracy')]}, {('Pedro', 'son', 'James'): [('Pedro', 'wife', 'Dorothy'), ('Dorothy', 'son', 'James')]}]
['brother', 'wife', 'son', 'aunt']