[Harold] 'granddaughter, [Annie], just took her first steps yesterday. [Cheryl] called [Annie], her sister, to see if she wanted to go out to eat. [Cheryl]'s father, [Pedro], was running late picking up his daughter, [Heather], from school.
('Harold', 'Heather')
[Harold] 'granddaughter, [Annie], just took her first steps yesterday. [Cheryl] called [Annie], her sister, to see if she wanted to go out to eat. [Cheryl]'s father, [Pedro], was running late picking up his daughter, [Heather], from school.
[{('Harold', 'granddaughter', 'Heather'): [('Harold', 'granddaughter', 'Cheryl'), ('Cheryl', 'sister', 'Heather')]}, {('Harold', 'granddaughter', 'Cheryl'): [('Harold', 'granddaughter', 'Annie'), ('Annie', 'sister', 'Cheryl')]}, {('Cheryl', 'sister', 'Heather'): [('Cheryl', 'father', 'Pedro'), ('Pedro', 'daughter', 'Heather')]}]
['granddaughter', 'sister', 'father', 'daughter']