[Harold]'s grandson [Bernardo] went to meet [Antonio] and his daughter [Bettie]. [Dorothy] was playing in the sandbox with her brother [Antonio].
('Dorothy', 'Harold')
[Dorothy] was playing in the sandbox with her brother [Antonio]. [Harold]'s grandson [Bernardo] went to meet [Antonio] and his daughter [Bettie].
[{('Dorothy', 'father', 'Harold'): [('Dorothy', 'brother', 'Antonio'), ('Antonio', 'father', 'Harold')]}, {('Antonio', 'father', 'Harold'): [('Antonio', 'daughter', 'Bettie'), ('Bettie', 'grandfather', 'Harold')]}, {('Bettie', 'grandfather', 'Harold'): [('Bettie', 'brother', 'Bernardo'), ('Bernardo', 'grandfather', 'Harold')]}]
['brother', 'daughter', 'brother', 'grandfather']