[Wesley] took his son [Charles] fishing. [Wesley] and [Charles] stopped to give [Charles]'s sister, [Martha], some fish. [Wesley] liked to play games with his sister, [Cindy].
('Martha', 'Cindy')
[Wesley] took his son [Charles] fishing. [Wesley] and [Charles] stopped to give [Charles]'s sister, [Martha], some fish. [Wesley] liked to play games with his sister, [Cindy].
[{('Martha', 'aunt', 'Cindy'): [('Martha', 'father', 'Wesley'), ('Wesley', 'sister', 'Cindy')]}, {('Martha', 'father', 'Wesley'): [('Martha', 'brother', 'Charles'), ('Charles', 'father', 'Wesley')]}]
['brother', 'father', 'sister']