[Dennis] loves his mother very much. Her name is [Amy]. [Dennis] and his wife [Emily] went to a lovely anniversary dinner.
('Emily', 'Amy')
[Dennis] and his wife [Emily] went to a lovely anniversary dinner. [Dennis] loves his mother very much. Her name is [Amy].
[{('Emily', 'mother-in-law', 'Amy'): [('Emily', 'husband', 'Dennis'), ('Dennis', 'mother', 'Amy')]}]
['husband', 'mother']