[Rebecca] took her uncle [Louis] to the grocery store. [Pedro] and [Dorothy] have a daughter, [Cheryl]. [Pedro] took his daughter, [Rebecca], shopping.
('Dorothy', 'Louis')
[Pedro] and [Dorothy] have a daughter, [Cheryl]. [Pedro] took his daughter, [Rebecca], shopping. [Rebecca] took her uncle [Louis] to the grocery store.
[{('Dorothy', 'brother', 'Louis'): [('Dorothy', 'daughter', 'Rebecca'), ('Rebecca', 'uncle', 'Louis')]}, {('Dorothy', 'daughter', 'Rebecca'): [('Dorothy', 'daughter', 'Cheryl'), ('Cheryl', 'sister', 'Rebecca')]}, {('Cheryl', 'sister', 'Rebecca'): [('Cheryl', 'father', 'Pedro'), ('Pedro', 'daughter', 'Rebecca')]}]
['daughter', 'father', 'daughter', 'uncle']