[Frances] took her granddaughter [Andrea] shopping. [Joshua] bought his daughter, [Andrea], flowers. [Lena] and her mother [Frances] went to volunteer at the homeless shelter last weekend.
('Joshua', 'Lena')
[Joshua] bought his daughter, [Andrea], flowers. [Frances] took her granddaughter [Andrea] shopping. [Lena] and her mother [Frances] went to volunteer at the homeless shelter last weekend.
[{('Joshua', 'sister', 'Lena'): [('Joshua', 'mother', 'Frances'), ('Frances', 'daughter', 'Lena')]}, {('Joshua', 'mother', 'Frances'): [('Joshua', 'daughter', 'Andrea'), ('Andrea', 'grandmother', 'Frances')]}]
['daughter', 'grandmother', 'daughter']