[Robert] was having an argument with his wife [Lorraine], and his own mother [Nancy] was n't on his side either.
('Lorraine', 'Nancy')
[Robert] was having an argument with his wife [Lorraine], and his own mother [Nancy] was n't on his side either.
[{('Lorraine', 'mother-in-law', 'Nancy'): [('Lorraine', 'husband', 'Robert'), ('Robert', 'mother', 'Nancy')]}]
['husband', 'mother']