[Chris] takes his wife [Mildred] out for their anniversary. [Wesley] watched his son [Charles] play catch. [Charles] tossed the ball back and fourth with his brother [Chris].
('Wesley', 'Mildred')
[Wesley] watched his son [Charles] play catch. [Charles] tossed the ball back and fourth with his brother [Chris]. [Chris] takes his wife [Mildred] out for their anniversary.
[{('Wesley', 'daughter-in-law', 'Mildred'): [('Wesley', 'son', 'Chris'), ('Chris', 'wife', 'Mildred')]}, {('Wesley', 'son', 'Chris'): [('Wesley', 'son', 'Charles'), ('Charles', 'brother', 'Chris')]}]
['son', 'brother', 'wife']