[Pedro] is the proud father of the lovely [Jeffrey] [Dorothy] took her son [Roberto] to the park yesterday. [Roberto]'s sister [Rebecca] was playing at a friends house and did n't get to go. [Dorothy] took her son, [Jeffrey], to the movie theater for his birthday.
('Rebecca', 'Pedro')
[Dorothy] took her son [Roberto] to the park yesterday. [Roberto]'s sister [Rebecca] was playing at a friends house and did n't get to go. [Dorothy] took her son, [Jeffrey], to the movie theater for his birthday. [Pedro] is the proud father of the lovely [Jeffrey]
[{('Rebecca', 'father', 'Pedro'): [('Rebecca', 'brother', 'Jeffrey'), ('Jeffrey', 'father', 'Pedro')]}, {('Rebecca', 'brother', 'Jeffrey'): [('Rebecca', 'brother', 'Roberto'), ('Roberto', 'brother', 'Jeffrey')]}, {('Roberto', 'brother', 'Jeffrey'): [('Roberto', 'mother', 'Dorothy'), ('Dorothy', 'son', 'Jeffrey')]}]
['brother', 'mother', 'son', 'father']