[Shantel] was so excited to take her grandson, [Jeffrey], to his first day at school. [Rebecca] and her sister [Cheryl] went to the basketball game. [Rebecca] invited [Jeffrey] to meet them there, since she is his sister. [Rebecca] called [Cheryl], her sister, to see if she wanted to go out to eat.
('Shantel', 'Rebecca')
[Shantel] was so excited to take her grandson, [Jeffrey], to his first day at school. [Rebecca] and her sister [Cheryl] went to the basketball game. [Rebecca] invited [Jeffrey] to meet them there, since she is his sister. [Rebecca] called [Cheryl], her sister, to see if she wanted to go out to eat.
[{('Shantel', 'granddaughter', 'Rebecca'): [('Shantel', 'granddaughter', 'Cheryl'), ('Cheryl', 'sister', 'Rebecca')]}, {('Shantel', 'granddaughter', 'Cheryl'): [('Shantel', 'grandson', 'Jeffrey'), ('Jeffrey', 'sister', 'Cheryl')]}, {('Jeffrey', 'sister', 'Cheryl'): [('Jeffrey', 'sister', 'Rebecca'), ('Rebecca', 'sister', 'Cheryl')]}]
['grandson', 'sister', 'sister', 'sister']