[Joshua] and his sister [Cindy] were fighting. [Leonard], [Cindy]'s son, got them to put aside their differences and make up. [Joshua] is a very hot guy, but his sister [Lena] is even more attractive.
('Lena', 'Leonard')
[Joshua] is a very hot guy, but his sister [Lena] is even more attractive. [Joshua] and his sister [Cindy] were fighting. [Leonard], [Cindy]'s son, got them to put aside their differences and make up.
[{('Lena', 'nephew', 'Leonard'): [('Lena', 'sister', 'Cindy'), ('Cindy', 'son', 'Leonard')]}, {('Lena', 'sister', 'Cindy'): [('Lena', 'brother', 'Joshua'), ('Joshua', 'sister', 'Cindy')]}]
['brother', 'sister', 'son']