[Hugh] is taking his daughter [Marie] out for lunch. [David] and her daughter [Marie] were on vaction. [David] was celebrating her birthday with her mother [Frances].
('Hugh', 'Frances')
[Hugh] is taking his daughter [Marie] out for lunch. [David] and her daughter [Marie] were on vaction. [David] was celebrating her birthday with her mother [Frances].
[{('Hugh', 'mother', 'Frances'): [('Hugh', 'daughter', 'Marie'), ('Marie', 'grandmother', 'Frances')]}, {('Marie', 'grandmother', 'Frances'): [('Marie', 'mother', 'David'), ('David', 'mother', 'Frances')]}]
['daughter', 'mother', 'mother']