[James] took his sister [Katherine] out to dinner for her birthday. [James] and his sister [Michelle] were fighting. [Keith], [Michelle]'s son, got them to put aside their differences and make up.
('Katherine', 'Keith')
[James] took his sister [Katherine] out to dinner for her birthday. [James] and his sister [Michelle] were fighting. [Keith], [Michelle]'s son, got them to put aside their differences and make up.
[{('Katherine', 'nephew', 'Keith'): [('Katherine', 'sister', 'Michelle'), ('Michelle', 'son', 'Keith')]}, {('Katherine', 'sister', 'Michelle'): [('Katherine', 'brother', 'James'), ('James', 'sister', 'Michelle')]}]