[John] called his nephew [Dale] and they made plans to go to a football game this weekend. [Rich] made a sandwich for his son [Keith]. [Keith]'s brother [Dale] ate an apple instead.
('Rich', 'John')
[Rich] made a sandwich for his son [Keith]. [Keith]'s brother [Dale] ate an apple instead. [John] called his nephew [Dale] and they made plans to go to a football game this weekend.
[{('Rich', 'brother', 'John'): [('Rich', 'son', 'Dale'), ('Dale', 'uncle', 'John')]}, {('Rich', 'son', 'Dale'): [('Rich', 'son', 'Keith'), ('Keith', 'brother', 'Dale')]}]