[David] and her husband [Hugh] celebrated their anniversary last night. They went out to a nice restaurant to celebrate. [Hugh] asked his son, [Johnson], to go grocery shopping for him. [Johnson] was busy and sent his wife, [Evangeline], instead.
('David', 'Evangeline')
[David] and her husband [Hugh] celebrated their anniversary last night. They went out to a nice restaurant to celebrate. [Hugh] asked his son, [Johnson], to go grocery shopping for him. [Johnson] was busy and sent his wife, [Evangeline], instead.
[{('David', 'daughter-in-law', 'Evangeline'): [('David', 'son', 'Johnson'), ('Johnson', 'wife', 'Evangeline')]}, {('David', 'son', 'Johnson'): [('David', 'husband', 'Hugh'), ('Hugh', 'son', 'Johnson')]}]
['husband', 'son', 'wife']