[Helen] loves her brother [Rich]. [Helen] is n't too fond of her brother [Matthew] though. [Katherine] is always around her brother [Matthew].
('Katherine', 'Rich')
[Katherine] is always around her brother [Matthew]. [Helen] loves her brother [Rich]. [Helen] is n't too fond of her brother [Matthew] though.
[{('Katherine', 'brother', 'Rich'): [('Katherine', 'brother', 'Matthew'), ('Matthew', 'brother', 'Rich')]}, {('Matthew', 'brother', 'Rich'): [('Matthew', 'sister', 'Helen'), ('Helen', 'brother', 'Rich')]}]