[Dennis] always enjoyed playing with his sister, [Natalia], when they were growing up. [Clarence] took his granddaughter [Natalia] to the movies yesterday and they got popcorn and candy before the movie starated.
('Dennis', 'Clarence')
[Dennis] always enjoyed playing with his sister, [Natalia], when they were growing up. [Clarence] took his granddaughter [Natalia] to the movies yesterday and they got popcorn and candy before the movie starated.
[{('Dennis', 'grandfather', 'Clarence'): [('Dennis', 'sister', 'Natalia'), ('Natalia', 'grandfather', 'Clarence')]}]
['sister', 'grandfather']