[Joshua]'s sister [Lena] asked him for some help planting her garden. [Cindy] and her daughter [Natasha] went to church. They were both very religious. [Joshua] is going to the arcade with his sister, [Cindy].
('Lena', 'Natasha')
[Joshua]'s sister [Lena] asked him for some help planting her garden. [Joshua] is going to the arcade with his sister, [Cindy]. [Cindy] and her daughter [Natasha] went to church. They were both very religious.
[{('Lena', 'niece', 'Natasha'): [('Lena', 'sister', 'Cindy'), ('Cindy', 'daughter', 'Natasha')]}, {('Lena', 'sister', 'Cindy'): [('Lena', 'brother', 'Joshua'), ('Joshua', 'sister', 'Cindy')]}]
['brother', 'sister', 'daughter']