[David] loves playing checkers with her sister's son. His name is [Irvin]. [Wesley] took his son [Irvin] to batting practice with his baseball team, but had to leave him there alone for an hour to pick up his daughter [Tina].
('Tina', 'David')
[Wesley] took his son [Irvin] to batting practice with his baseball team, but had to leave him there alone for an hour to pick up his daughter [Tina]. [David] loves playing checkers with her sister's son. His name is [Irvin].
[{('Tina', 'aunt', 'David'): [('Tina', 'father', 'Wesley'), ('Wesley', 'sister', 'David')]}, {('Wesley', 'sister', 'David'): [('Wesley', 'son', 'Irvin'), ('Irvin', 'aunt', 'David')]}]
['father', 'son', 'aunt']