[Ashley] went shopping for gifts for her granddaughter [Charlotte]'s birthday. While she was out, she bought gifts for [Rosetta], [Charlotte]'s sister, since her birthday was coming up as well.
('Ashley', 'Rosetta')
[Ashley] went shopping for gifts for her granddaughter [Charlotte]'s birthday. While she was out, she bought gifts for [Rosetta], [Charlotte]'s sister, since her birthday was coming up as well.
[{('Ashley', 'granddaughter', 'Rosetta'): [('Ashley', 'granddaughter', 'Charlotte'), ('Charlotte', 'sister', 'Rosetta')]}]
['granddaughter', 'sister']