[Ann]'s mother [Martha] and husband [Robert] made a Mother's Day breakfast-in-bed meal for her.
('Robert', 'Martha')
[Ann]'s mother [Martha] and husband [Robert] made a Mother's Day breakfast-in-bed meal for her.
[{('Robert', 'mother-in-law', 'Martha'): [('Robert', 'wife', 'Ann'), ('Ann', 'mother', 'Martha')]}]