[Wesley]'s wife, [Lena], was thrilled to see her son, [Chris]. [Chris] and his sister, [Martha], had been away at camp.
('Wesley', 'Martha')
[Wesley]'s wife, [Lena], was thrilled to see her son, [Chris]. [Chris] and his sister, [Martha], had been away at camp.
[{('Wesley', 'daughter', 'Martha'): [('Wesley', 'son', 'Chris'), ('Chris', 'sister', 'Martha')]}, {('Wesley', 'son', 'Chris'): [('Wesley', 'wife', 'Lena'), ('Lena', 'son', 'Chris')]}]
['wife', 'son', 'sister']