[Marie] bought her son [John] a car. [John]'s sister [Elsie] was jealous. [Allan] liked to talk about his sister, [Elsie]. [Marie] and her brother [Pedro] were having a wonderful time at Disneyland.
('Allan', 'Pedro')
[Allan] liked to talk about his sister, [Elsie]. [Marie] bought her son [John] a car. [John]'s sister [Elsie] was jealous. [Marie] and her brother [Pedro] were having a wonderful time at Disneyland.
[{('Allan', 'uncle', 'Pedro'): [('Allan', 'mother', 'Marie'), ('Marie', 'brother', 'Pedro')]}, {('Allan', 'mother', 'Marie'): [('Allan', 'sister', 'Elsie'), ('Elsie', 'mother', 'Marie')]}, {('Elsie', 'mother', 'Marie'): [('Elsie', 'brother', 'John'), ('John', 'mother', 'Marie')]}]
['sister', 'brother', 'mother', 'brother']