[Rich] took his daughter, [Cheryl], to the father daughter dance at church. [Keith] and his wife [Clara] were making plans for their anniversary. [Keith] took his sister [Cheryl] out to dinner for her birthday.
('Rich', 'Clara')
[Rich] took his daughter, [Cheryl], to the father daughter dance at church. [Keith] took his sister [Cheryl] out to dinner for her birthday. [Keith] and his wife [Clara] were making plans for their anniversary.
[{('Rich', 'daughter-in-law', 'Clara'): [('Rich', 'son', 'Keith'), ('Keith', 'wife', 'Clara')]}, {('Rich', 'son', 'Keith'): [('Rich', 'daughter', 'Cheryl'), ('Cheryl', 'brother', 'Keith')]}]