[Harold]'s grandson, [James], and his wife, [Shantel], were playing frisbee at the park. [James]'s sister, [Rebecca], showed up at noon with tea and sandwiches. [Harold] surprised [Shantel] with her favorite roses and a necklace on their 10 year marriage anniversary.
('Harold', 'Rebecca')
[Harold] surprised [Shantel] with her favorite roses and a necklace on their 10 year marriage anniversary. [Harold]'s grandson, [James], and his wife, [Shantel], were playing frisbee at the park. [James]'s sister, [Rebecca], showed up at noon with tea and sandwiches.
[{('Harold', 'granddaughter', 'Rebecca'): [('Harold', 'wife', 'Shantel'), ('Shantel', 'granddaughter', 'Rebecca')]}, {('Shantel', 'granddaughter', 'Rebecca'): [('Shantel', 'grandson', 'James'), ('James', 'sister', 'Rebecca')]}, {('Shantel', 'grandson', 'James'): [('Shantel', 'husband', 'Harold'), ('Harold', 'grandson', 'James')]}]
['wife', 'husband', 'grandson', 'sister']