[Katherine] read her son [Allan] a bedtime story every night. [Allan] went to the football game with his uncle [Rich]. [Rich] 'son [Keith] could not believe that his father bought him a coffee machine for his birthday.
('Katherine', 'Keith')
[Katherine] read her son [Allan] a bedtime story every night. [Allan] went to the football game with his uncle [Rich]. [Rich] 'son [Keith] could not believe that his father bought him a coffee machine for his birthday.
[{('Katherine', 'nephew', 'Keith'): [('Katherine', 'brother', 'Rich'), ('Rich', 'son', 'Keith')]}, {('Katherine', 'brother', 'Rich'): [('Katherine', 'son', 'Allan'), ('Allan', 'uncle', 'Rich')]}]