[Dale] and his sister [Amy] walked to school together every day, since they only lived two blocks away from the school. [Nancy] borrowed some money from her brother [Dale].
('Nancy', 'Amy')
[Nancy] borrowed some money from her brother [Dale]. [Dale] and his sister [Amy] walked to school together every day, since they only lived two blocks away from the school.
[{('Nancy', 'sister', 'Amy'): [('Nancy', 'brother', 'Dale'), ('Dale', 'sister', 'Amy')]}]
['brother', 'sister']