[Dorothy] was excited to see her son [Roberto] meet her father [Harold] for the first time. She had wanted to bring her other son [Jeffrey] along, but he was sick at home with the flu. [Jeffrey] took his sister [Rebecca] out to dinner for her birthday.
('Rebecca', 'Harold')
[Jeffrey] took his sister [Rebecca] out to dinner for her birthday. [Dorothy] was excited to see her son [Roberto] meet her father [Harold] for the first time. She had wanted to bring her other son [Jeffrey] along, but he was sick at home with the flu.
[{('Rebecca', 'grandfather', 'Harold'): [('Rebecca', 'mother', 'Dorothy'), ('Dorothy', 'father', 'Harold')]}, {('Rebecca', 'mother', 'Dorothy'): [('Rebecca', 'brother', 'Jeffrey'), ('Jeffrey', 'mother', 'Dorothy')]}, {('Jeffrey', 'mother', 'Dorothy'): [('Jeffrey', 'brother', 'Roberto'), ('Roberto', 'mother', 'Dorothy')]}]
['brother', 'brother', 'mother', 'father']