[Marie] made brownies for her husband [Brandon] and her sister [Evangeline]. [Evangeline]'s mother [David] coul n't try the brownies because she ca n't eat gluten.
('Brandon', 'David')
[Marie] made brownies for her husband [Brandon] and her sister [Evangeline]. [Evangeline]'s mother [David] coul n't try the brownies because she ca n't eat gluten.
[{('Brandon', 'mother-in-law', 'David'): [('Brandon', 'wife', 'Marie'), ('Marie', 'mother', 'David')]}, {('Marie', 'mother', 'David'): [('Marie', 'sister', 'Evangeline'), ('Evangeline', 'mother', 'David')]}]
['wife', 'sister', 'mother']