[Wesley]'s son [Charles] and sister [Lynn] went camping together last weekend. [Lynn] called [Cindy], her sister, to see if she wanted to go out to eat.
('Cindy', 'Charles')
[Lynn] called [Cindy], her sister, to see if she wanted to go out to eat. [Wesley]'s son [Charles] and sister [Lynn] went camping together last weekend.
[{('Cindy', 'nephew', 'Charles'): [('Cindy', 'brother', 'Wesley'), ('Wesley', 'son', 'Charles')]}, {('Cindy', 'brother', 'Wesley'): [('Cindy', 'sister', 'Lynn'), ('Lynn', 'brother', 'Wesley')]}]
['sister', 'brother', 'son']