[Hugh] hit his brother [Wesley] in the head. [Lynn] is one of my favorite students. She is the younger sister of [Hugh], who I taught last year, [David] needed to go to the store. [David] asked her sister [Lynn] for a ride.
('Wesley', 'David')
[Hugh] hit his brother [Wesley] in the head. [Lynn] is one of my favorite students. She is the younger sister of [Hugh], who I taught last year, [David] needed to go to the store. [David] asked her sister [Lynn] for a ride.
[{('Wesley', 'sister', 'David'): [('Wesley', 'sister', 'Lynn'), ('Lynn', 'sister', 'David')]}, {('Wesley', 'sister', 'Lynn'): [('Wesley', 'brother', 'Hugh'), ('Hugh', 'sister', 'Lynn')]}]
['brother', 'sister', 'sister']