[Allan] wanted to play at the park so his mother got her sister, [Beverly], to take him. [Michelle] and her sister [Angelica] played golf together. [Michelle] won easily. [Robert] and his son [Allan] were going out for lunch. [Michelle] asked her father, [Robert], if she could come too.
('Angelica', 'Beverly')
[Michelle] and her sister [Angelica] played golf together. [Michelle] won easily. [Robert] and his son [Allan] were going out for lunch. [Michelle] asked her father, [Robert], if she could come too. [Allan] wanted to play at the park so his mother got her sister, [Beverly], to take him.
[{('Angelica', 'aunt', 'Beverly'): [('Angelica', 'father', 'Robert'), ('Robert', 'sister', 'Beverly')]}, {('Angelica', 'father', 'Robert'): [('Angelica', 'sister', 'Michelle'), ('Michelle', 'father', 'Robert')]}, {('Robert', 'sister', 'Beverly'): [('Robert', 'son', 'Allan'), ('Allan', 'aunt', 'Beverly')]}]
['sister', 'father', 'son', 'aunt']