[Pedro] walked his daughters [Cheryl] and [Rebecca] to school. [Dorothy] and her daughter [Rebecca] went out for ice cream. [Dorothy] got a cone and [Rebecca] got a sundae. [Tracy] likes going to the mall with her aunt [Cheryl].
('Dorothy', 'Tracy')
[Dorothy] and her daughter [Rebecca] went out for ice cream. [Dorothy] got a cone and [Rebecca] got a sundae. [Pedro] walked his daughters [Cheryl] and [Rebecca] to school. [Tracy] likes going to the mall with her aunt [Cheryl].
[{('Dorothy', 'sister', 'Tracy'): [('Dorothy', 'daughter', 'Cheryl'), ('Cheryl', 'aunt', 'Tracy')]}, {('Dorothy', 'daughter', 'Cheryl'): [('Dorothy', 'daughter', 'Rebecca'), ('Rebecca', 'sister', 'Cheryl')]}, {('Rebecca', 'sister', 'Cheryl'): [('Rebecca', 'father', 'Pedro'), ('Pedro', 'daughter', 'Cheryl')]}]
['daughter', 'father', 'daughter', 'aunt']