[Harold] called his grandchildren [Annie] and [Heather]. He asked how their father [Pedro] was doing. [Dorothy] apologized to her father in law Rod for the accident. Rod's son [Pedro] had backed into his car in the driveway when he was attempting to pull out.
('Dorothy', 'Harold')
[Dorothy] apologized to her father in law Rod for the accident. Rod's son [Pedro] had backed into his car in the driveway when he was attempting to pull out. [Harold] called his grandchildren [Annie] and [Heather]. He asked how their father [Pedro] was doing.
[{('Dorothy', 'father', 'Harold'): [('Dorothy', 'daughter', 'Heather'), ('Heather', 'grandfather', 'Harold')]}, {('Heather', 'grandfather', 'Harold'): [('Heather', 'sister', 'Annie'), ('Annie', 'grandfather', 'Harold')]}, {('Dorothy', 'daughter', 'Heather'): [('Dorothy', 'husband', 'Pedro'), ('Pedro', 'daughter', 'Heather')]}]
['husband', 'daughter', 'sister', 'grandfather']