[Keith]'s brother, [Tom] went sailing with his other brother, [Harry]. [Rich]'s son, [Keith], had been misbehaving, so [Rich] had to spank him.
('Rich', 'Harry')
[Rich]'s son, [Keith], had been misbehaving, so [Rich] had to spank him. [Keith]'s brother, [Tom] went sailing with his other brother, [Harry].
[{('Rich', 'son', 'Harry'): [('Rich', 'son', 'Keith'), ('Keith', 'brother', 'Harry')]}, {('Keith', 'brother', 'Harry'): [('Keith', 'brother', 'Tom'), ('Tom', 'brother', 'Harry')]}]