[Rich]'s son is [Dale]. [Dale] and his father always go fishing together on Sundays and have a great time together. [Helen] ca n't wait to go to Australia with her nephew [Dale]. [Rich] and his sister [Katherine] stood in line at the fair.
('Katherine', 'Helen')
[Rich] and his sister [Katherine] stood in line at the fair. [Rich]'s son is [Dale]. [Dale] and his father always go fishing together on Sundays and have a great time together. [Helen] ca n't wait to go to Australia with her nephew [Dale].
[{('Katherine', 'sister', 'Helen'): [('Katherine', 'brother', 'Rich'), ('Rich', 'sister', 'Helen')]}, {('Rich', 'sister', 'Helen'): [('Rich', 'son', 'Dale'), ('Dale', 'aunt', 'Helen')]}]