[Wayne]'s mother [Beverly] wanted to surprise him for his birthday, so she baked him a cake. [Tracy] called [Beverly], her sister, to see if she wanted to go out to eat. [Bobby] and his grandfather [Harold] like to play chess together. [Tracy] has been waiting around all day for her son, [Bobby].
('Wayne', 'Harold')
[Wayne]'s mother [Beverly] wanted to surprise him for his birthday, so she baked him a cake. [Tracy] called [Beverly], her sister, to see if she wanted to go out to eat. [Tracy] has been waiting around all day for her son, [Bobby]. [Bobby] and his grandfather [Harold] like to play chess together.
[{('Wayne', 'grandfather', 'Harold'): [('Wayne', 'mother', 'Beverly'), ('Beverly', 'father', 'Harold')]}, {('Beverly', 'father', 'Harold'): [('Beverly', 'sister', 'Tracy'), ('Tracy', 'father', 'Harold')]}, {('Tracy', 'father', 'Harold'): [('Tracy', 'son', 'Bobby'), ('Bobby', 'grandfather', 'Harold')]}]
['mother', 'sister', 'son', 'grandfather']