[Constance] was surprised when her husband, [Ernest], and her son, [Newton], came back early from their trip to Spain.
('Ernest', 'Newton')
[Constance] was surprised when her husband, [Ernest], and her son, [Newton], came back early from their trip to Spain.
[{('Ernest', 'son', 'Newton'): [('Ernest', 'wife', 'Constance'), ('Constance', 'son', 'Newton')]}]