[Lorraine] and her husband [Robert] were working in the garden when [Nancy], [Lorraine]'s mother, came over and offered to help.
('Nancy', 'Robert')
[Lorraine] and her husband [Robert] were working in the garden when [Nancy], [Lorraine]'s mother, came over and offered to help.
[{('Nancy', 'son-in-law', 'Robert'): [('Nancy', 'daughter', 'Lorraine'), ('Lorraine', 'husband', 'Robert')]}]
['daughter', 'husband']