[Pete]'s father's name is [Francisco]. [Leonard] and his brother [Pete] went to the arcade. They had a wonderful time. [David] does n't like having to babysit her younger brother, [Francisco].
('David', 'Leonard')
[David] does n't like having to babysit her younger brother, [Francisco]. [Pete]'s father's name is [Francisco]. [Leonard] and his brother [Pete] went to the arcade. They had a wonderful time.
[{('David', 'nephew', 'Leonard'): [('David', 'brother', 'Francisco'), ('Francisco', 'son', 'Leonard')]}, {('Francisco', 'son', 'Leonard'): [('Francisco', 'son', 'Pete'), ('Pete', 'brother', 'Leonard')]}]
['brother', 'son', 'brother']