[Lena] told her daughter [Martha] to wash up. Dinner was ready. [Frances] picked up her daughter [Cindy] from school early. [Frances] told her daughter [Lena] to wash up. Dinner was ready.
('Cindy', 'Martha')
[Frances] picked up her daughter [Cindy] from school early. [Frances] told her daughter [Lena] to wash up. Dinner was ready. [Lena] told her daughter [Martha] to wash up. Dinner was ready.
[{('Cindy', 'niece', 'Martha'): [('Cindy', 'sister', 'Lena'), ('Lena', 'daughter', 'Martha')]}, {('Cindy', 'sister', 'Lena'): [('Cindy', 'mother', 'Frances'), ('Frances', 'daughter', 'Lena')]}]
['mother', 'daughter', 'daughter']