[Jacob] and her sister [Heidi] decided to take a trip to Mexico together. [Clarence] came to watch the school play. His daughter's son [Jacob] held the lead role.
('Heidi', 'Clarence')
[Jacob] and her sister [Heidi] decided to take a trip to Mexico together. [Clarence] came to watch the school play. His daughter's son [Jacob] held the lead role.
[{('Heidi', 'grandfather', 'Clarence'): [('Heidi', 'brother', 'Jacob'), ('Jacob', 'grandfather', 'Clarence')]}]
['brother', 'grandfather']