[George] is taking his son [Jerry] on a camping trip for the weekend. [Ann] loves her brother [Jerry].
('Ann', 'George')
[Ann] loves her brother [Jerry]. [George] is taking his son [Jerry] on a camping trip for the weekend.
[{('Ann', 'father', 'George'): [('Ann', 'brother', 'Jerry'), ('Jerry', 'father', 'George')]}]
['brother', 'father']