[Roy] is a man with a son named [Ernest]. [Constance] went to dinner with her husband [Ernest].
('Constance', 'Roy')
[Constance] went to dinner with her husband [Ernest]. [Roy] is a man with a son named [Ernest].
[{('Constance', 'father-in-law', 'Roy'): [('Constance', 'husband', 'Ernest'), ('Ernest', 'father', 'Roy')]}]