[Cheryl] and her brother [Jerome] played tennis together. [Cheryl]'s sister [Annie] has an injured leg and watched instead. [Shantel] is a girl with a grandmother named [Annie]. [Jerome] and his sister [Heather] stood in line at the fair.
('Heather', 'Shantel')
[Jerome] and his sister [Heather] stood in line at the fair. [Cheryl] and her brother [Jerome] played tennis together. [Cheryl]'s sister [Annie] has an injured leg and watched instead. [Shantel] is a girl with a grandmother named [Annie].
[{('Heather', 'grandmother', 'Shantel'): [('Heather', 'sister', 'Annie'), ('Annie', 'grandmother', 'Shantel')]}, {('Heather', 'sister', 'Annie'): [('Heather', 'brother', 'Jerome'), ('Jerome', 'sister', 'Annie')]}, {('Jerome', 'sister', 'Annie'): [('Jerome', 'sister', 'Cheryl'), ('Cheryl', 'sister', 'Annie')]}]
['brother', 'sister', 'sister', 'grandmother']