[Cheryl] loves spending time with her father. His name is [Pedro]. [James]'s wife [Heather] is happy to learn that [James] will be coming home next week. [Rebecca] and her sister [Cheryl] went to the basketball game. [Rebecca] invited [James] to meet them there, since she is his sister.
('Heather', 'Pedro')
[James]'s wife [Heather] is happy to learn that [James] will be coming home next week. [Rebecca] and her sister [Cheryl] went to the basketball game. [Rebecca] invited [James] to meet them there, since she is his sister. [Cheryl] loves spending time with her father. His name is [Pedro].
[{('Heather', 'father-in-law', 'Pedro'): [('Heather', 'husband', 'James'), ('James', 'father', 'Pedro')]}, {('James', 'father', 'Pedro'): [('James', 'sister', 'Cheryl'), ('Cheryl', 'father', 'Pedro')]}, {('James', 'sister', 'Cheryl'): [('James', 'sister', 'Rebecca'), ('Rebecca', 'sister', 'Cheryl')]}]
['husband', 'sister', 'sister', 'father']