[Irvin] took his sister [Tina] out to dinner for her birthday. [Wesley] took his father, [James], to a baseball game downtown. They invited [Irvin] along, because [Wesley] is [Irvin]'s father.
('Tina', 'James')
[Irvin] took his sister [Tina] out to dinner for her birthday. [Wesley] took his father, [James], to a baseball game downtown. They invited [Irvin] along, because [Wesley] is [Irvin]'s father.
[{('Tina', 'grandfather', 'James'): [('Tina', 'father', 'Wesley'), ('Wesley', 'father', 'James')]}, {('Tina', 'father', 'Wesley'): [('Tina', 'brother', 'Irvin'), ('Irvin', 'father', 'Wesley')]}]
['brother', 'father', 'father']