[Heather] is taking a trip to see her sister [Annie]. [Heather] called [Cheryl], her sister, to see if she wanted to go out to eat. [Pedro] is happy that his daughter is doing so well. Her name is [Annie]. [Cheryl] is [Roberto]'s first wife
('Roberto', 'Pedro')
[Cheryl] is [Roberto]'s first wife [Heather] called [Cheryl], her sister, to see if she wanted to go out to eat. [Heather] is taking a trip to see her sister [Annie]. [Pedro] is happy that his daughter is doing so well. Her name is [Annie].
[{('Roberto', 'father-in-law', 'Pedro'): [('Roberto', 'wife', 'Cheryl'), ('Cheryl', 'father', 'Pedro')]}, {('Cheryl', 'father', 'Pedro'): [('Cheryl', 'sister', 'Annie'), ('Annie', 'father', 'Pedro')]}, {('Cheryl', 'sister', 'Annie'): [('Cheryl', 'sister', 'Heather'), ('Heather', 'sister', 'Annie')]}]
['wife', 'sister', 'sister', 'father']