[Dorothy] took her sister [Tracy] out for dinner to celebrate her birthday. [Heather] was excited for today, its her daughter's, [Dorothy], spring break. She will finally get to see her. [Tracy] took her younger sister [Marie] to the carnival last weekend. [Marie]'s sister, [Beverly], recently started acting.
('Beverly', 'Heather')
[Marie]'s sister, [Beverly], recently started acting. [Tracy] took her younger sister [Marie] to the carnival last weekend. [Dorothy] took her sister [Tracy] out for dinner to celebrate her birthday. [Heather] was excited for today, its her daughter's, [Dorothy], spring break. She will finally get to see her.
[{('Beverly', 'niece', 'Heather'): [('Beverly', 'sister', 'Dorothy'), ('Dorothy', 'daughter', 'Heather')]}, {('Beverly', 'sister', 'Dorothy'): [('Beverly', 'sister', 'Tracy'), ('Tracy', 'sister', 'Dorothy')]}, {('Beverly', 'sister', 'Tracy'): [('Beverly', 'sister', 'Marie'), ('Marie', 'sister', 'Tracy')]}]
['sister', 'sister', 'sister', 'daughter']