[Ashley] took her son [Dale] and daughter [Amy] to school today because they missed the bus.
('Dale', 'Amy')
[Ashley] took her son [Dale] and daughter [Amy] to school today because they missed the bus.
[{('Dale', 'sister', 'Amy'): [('Dale', 'mother', 'Ashley'), ('Ashley', 'daughter', 'Amy')]}]
['mother', 'daughter']