[Tina] was playing in the sandbox with her brother [Theodore]. [Lena] and her son [Theodore] were taking a walk through the park when suddenly [Lena]'s father [James] called.
('Tina', 'James')
[Tina] was playing in the sandbox with her brother [Theodore]. [Lena] and her son [Theodore] were taking a walk through the park when suddenly [Lena]'s father [James] called.
[{('Tina', 'grandfather', 'James'): [('Tina', 'brother', 'Theodore'), ('Theodore', 'grandfather', 'James')]}, {('Theodore', 'grandfather', 'James'): [('Theodore', 'mother', 'Lena'), ('Lena', 'father', 'James')]}]
['brother', 'mother', 'father']