[Annie] is taking a trip to see her sister [Cheryl]. [Cheryl] is getting married. She is looking forward to her sister, [Annie], attending. They have n't seen each other since [Annie] relocated to California with her husband 3 years ago. [Pedro] walked his daughters [Cheryl] and [Rebecca] to school.
('Rebecca', 'Cheryl')
[Pedro] walked his daughters [Cheryl] and [Rebecca] to school. [Cheryl] is getting married. She is looking forward to her sister, [Annie], attending. They have n't seen each other since [Annie] relocated to California with her husband 3 years ago. [Annie] is taking a trip to see her sister [Cheryl].
[{('Rebecca', 'sister', 'Cheryl'): [('Rebecca', 'sister', 'Annie'), ('Annie', 'sister', 'Cheryl')]}, {('Rebecca', 'sister', 'Annie'): [('Rebecca', 'father', 'Pedro'), ('Pedro', 'daughter', 'Annie')]}, {('Pedro', 'daughter', 'Annie'): [('Pedro', 'daughter', 'Cheryl'), ('Cheryl', 'sister', 'Annie')]}]
['father', 'daughter', 'sister', 'sister']