[Rich] and [Matthew] are brothers who look nothing alike. [Rich] who is [Keith]'s father grounded [Keith] after finding out what [Keith] had done at school. [Katherine] took her nephew, [Keith], to go feed the ducks at the park.
('Matthew', 'Katherine')
[Rich] and [Matthew] are brothers who look nothing alike. [Rich] who is [Keith]'s father grounded [Keith] after finding out what [Keith] had done at school. [Katherine] took her nephew, [Keith], to go feed the ducks at the park.
[{('Matthew', 'sister', 'Katherine'): [('Matthew', 'brother', 'Rich'), ('Rich', 'sister', 'Katherine')]}, {('Rich', 'sister', 'Katherine'): [('Rich', 'son', 'Keith'), ('Keith', 'aunt', 'Katherine')]}]