[Jeffrey] made his moth [Dorothy] a mother's day gift at school. [Roberto] and his father [Pedro] played video games all day last Saturday. [Pedro] who is [Jeffrey]'s father grounded [Jeffrey] after finding out what [Jeffrey] had done at school. [Roberto] is a very hot guy, but his sister [Rebecca] is even more attractive.
('Rebecca', 'Dorothy')
[Roberto] is a very hot guy, but his sister [Rebecca] is even more attractive. [Roberto] and his father [Pedro] played video games all day last Saturday. [Pedro] who is [Jeffrey]'s father grounded [Jeffrey] after finding out what [Jeffrey] had done at school. [Jeffrey] made his moth [Dorothy] a mother's day gift at school.
[{('Rebecca', 'mother', 'Dorothy'): [('Rebecca', 'brother', 'Jeffrey'), ('Jeffrey', 'mother', 'Dorothy')]}, {('Rebecca', 'brother', 'Jeffrey'): [('Rebecca', 'brother', 'Roberto'), ('Roberto', 'brother', 'Jeffrey')]}, {('Roberto', 'brother', 'Jeffrey'): [('Roberto', 'father', 'Pedro'), ('Pedro', 'son', 'Jeffrey')]}]
['brother', 'father', 'son', 'mother']