[Michael] and his wife [Gloria] will be at the play. [Hugh]'s son, [Johnson], went to the candy store. [Johnson]'s brother, [Michael], went with him.
('Hugh', 'Gloria')
[Hugh]'s son, [Johnson], went to the candy store. [Johnson]'s brother, [Michael], went with him. [Michael] and his wife [Gloria] will be at the play.
[{('Hugh', 'daughter-in-law', 'Gloria'): [('Hugh', 'son', 'Michael'), ('Michael', 'wife', 'Gloria')]}, {('Hugh', 'son', 'Michael'): [('Hugh', 'son', 'Johnson'), ('Johnson', 'brother', 'Michael')]}]
['son', 'brother', 'wife']