[Heather] was sewing a sweater for her sister [Rebecca]. [Dorothy] took her daughter, [Rebecca], out to High Tea yesterday afternoon. [Pedro] walked his daughters [Annie] and [Heather] to school.
('Dorothy', 'Annie')
[Dorothy] took her daughter, [Rebecca], out to High Tea yesterday afternoon. [Heather] was sewing a sweater for her sister [Rebecca]. [Pedro] walked his daughters [Annie] and [Heather] to school.
[{('Dorothy', 'daughter', 'Annie'): [('Dorothy', 'daughter', 'Rebecca'), ('Rebecca', 'sister', 'Annie')]}, {('Rebecca', 'sister', 'Annie'): [('Rebecca', 'father', 'Pedro'), ('Pedro', 'daughter', 'Annie')]}, {('Rebecca', 'father', 'Pedro'): [('Rebecca', 'sister', 'Heather'), ('Heather', 'father', 'Pedro')]}]
['daughter', 'sister', 'father', 'daughter']