[Chris] went to the park with his father, [Wesley]. [Frances] went to visit her daughter, [Lena]. While there she spent some time with [Lena]'s son [Chris].
('Wesley', 'Frances')
[Chris] went to the park with his father, [Wesley]. [Frances] went to visit her daughter, [Lena]. While there she spent some time with [Lena]'s son [Chris].
[{('Wesley', 'mother', 'Frances'): [('Wesley', 'son', 'Chris'), ('Chris', 'grandmother', 'Frances')]}, {('Chris', 'grandmother', 'Frances'): [('Chris', 'mother', 'Lena'), ('Lena', 'mother', 'Frances')]}]
['son', 'mother', 'mother']