[Clarence] bought a present for his mother [Lynn]. [Francisco] enjoys the company of his sibling [David]. [Lynn] loves her brother [Francisco].
('Clarence', 'David')
[Clarence] bought a present for his mother [Lynn]. [Lynn] loves her brother [Francisco]. [Francisco] enjoys the company of his sibling [David].
[{('Clarence', 'aunt', 'David'): [('Clarence', 'mother', 'Lynn'), ('Lynn', 'sister', 'David')]}, {('Lynn', 'sister', 'David'): [('Lynn', 'brother', 'Francisco'), ('Francisco', 'sister', 'David')]}]
['mother', 'brother', 'sister']