[Lynn]'s son called [Joseph] is good and intelligent boy [Joshua] ate dinner with his wife [Lynn]. [Joseph] was nervous before the play, but when he looked out and saw his grandmother [Frances] in the crowd he felt much more confident.
('Joshua', 'Frances')
[Joshua] ate dinner with his wife [Lynn]. [Lynn]'s son called [Joseph] is good and intelligent boy [Joseph] was nervous before the play, but when he looked out and saw his grandmother [Frances] in the crowd he felt much more confident.
[{('Joshua', 'mother', 'Frances'): [('Joshua', 'son', 'Joseph'), ('Joseph', 'grandmother', 'Frances')]}, {('Joshua', 'son', 'Joseph'): [('Joshua', 'wife', 'Lynn'), ('Lynn', 'son', 'Joseph')]}]
['wife', 'son', 'grandmother']