[Lillian] and [George] have been happily married for seven years, and are looking forward to another seventy together. [Jerry] and his father [George] went jogging by the lake.
('Lillian', 'Jerry')
[Lillian] and [George] have been happily married for seven years, and are looking forward to another seventy together. [Jerry] and his father [George] went jogging by the lake.
[{('Lillian', 'son', 'Jerry'): [('Lillian', 'husband', 'George'), ('George', 'son', 'Jerry')]}]
['husband', 'son']