[James]'s grandfather [Harold] takes him to football games every Sunday during the season. [Rebecca] and her sister [Cheryl] played golf together. [Rebecca] won easily. [James] liked playing with his brother [Jeffrey] more than anyone else. This made [Rebecca] jealous of her brother [Jeffrey].
('Cheryl', 'Harold')
[Rebecca] and her sister [Cheryl] played golf together. [Rebecca] won easily. [James] liked playing with his brother [Jeffrey] more than anyone else. This made [Rebecca] jealous of her brother [Jeffrey]. [James]'s grandfather [Harold] takes him to football games every Sunday during the season.
[{('Cheryl', 'grandfather', 'Harold'): [('Cheryl', 'sister', 'Rebecca'), ('Rebecca', 'grandfather', 'Harold')]}, {('Rebecca', 'grandfather', 'Harold'): [('Rebecca', 'brother', 'James'), ('James', 'grandfather', 'Harold')]}, {('Rebecca', 'brother', 'James'): [('Rebecca', 'brother', 'Jeffrey'), ('Jeffrey', 'brother', 'James')]}]
['sister', 'brother', 'brother', 'grandfather']