[Cindy]'s son, [Pete], was busy with school activities and forgot to meet his sister. [Francisco] wanted his son, [Pete], to go fishing with him. [Francisco] was sad to learn that his sister [Lynn] was not going to make it to dinner like they had planned.
('Cindy', 'Lynn')
[Cindy]'s son, [Pete], was busy with school activities and forgot to meet his sister. [Francisco] wanted his son, [Pete], to go fishing with him. [Francisco] was sad to learn that his sister [Lynn] was not going to make it to dinner like they had planned.
[{('Cindy', 'sister', 'Lynn'): [('Cindy', 'son', 'Pete'), ('Pete', 'aunt', 'Lynn')]}, {('Pete', 'aunt', 'Lynn'): [('Pete', 'father', 'Francisco'), ('Francisco', 'sister', 'Lynn')]}]
['son', 'father', 'sister']