[Tina] and her sister [Pamela] were getting together this weekend so that they could go hiking together they had n't spent time together alone in a while. [Mildred] cooked Thanksgiving dinner while her grandmother [Frances] set the table. [Mildred]'s sister, [Pamela], picked up a pumpkin pie at the grocery store.
('Frances', 'Tina')
[Mildred] cooked Thanksgiving dinner while her grandmother [Frances] set the table. [Mildred]'s sister, [Pamela], picked up a pumpkin pie at the grocery store. [Tina] and her sister [Pamela] were getting together this weekend so that they could go hiking together they had n't spent time together alone in a while.
[{('Frances', 'granddaughter', 'Tina'): [('Frances', 'granddaughter', 'Mildred'), ('Mildred', 'sister', 'Tina')]}, {('Mildred', 'sister', 'Tina'): [('Mildred', 'sister', 'Pamela'), ('Pamela', 'sister', 'Tina')]}]
['granddaughter', 'sister', 'sister']