[Tracy] kept picking on her sister [Beverly]. [Beverly] was so upset, she asked her brother [Pedro] for some help. [Pedro]'s daughter, [Cheryl], went to the city this weekend. She spent her time there visiting her grandfather, [Harold], and had a wonderful time with him.
('Tracy', 'Harold')
[Tracy] kept picking on her sister [Beverly]. [Beverly] was so upset, she asked her brother [Pedro] for some help. [Pedro]'s daughter, [Cheryl], went to the city this weekend. She spent her time there visiting her grandfather, [Harold], and had a wonderful time with him.
[{('Tracy', 'father', 'Harold'): [('Tracy', 'sister', 'Beverly'), ('Beverly', 'father', 'Harold')]}, {('Beverly', 'father', 'Harold'): [('Beverly', 'brother', 'Pedro'), ('Pedro', 'father', 'Harold')]}, {('Pedro', 'father', 'Harold'): [('Pedro', 'daughter', 'Cheryl'), ('Cheryl', 'grandfather', 'Harold')]}]
['sister', 'brother', 'daughter', 'grandfather']