[Roy], [Mary]'s husband, treated them both to a fancy dinner last night. [Carl] ca n't wait to see his grandfather [Roy] later this week.
('Mary', 'Carl')
[Roy], [Mary]'s husband, treated them both to a fancy dinner last night. [Carl] ca n't wait to see his grandfather [Roy] later this week.
[{('Mary', 'grandson', 'Carl'): [('Mary', 'husband', 'Roy'), ('Roy', 'grandson', 'Carl')]}]