[Wayne] went to pick up his son [Jacob] from the baseball practice. [Jacob] was going to meet his wife, [Louise], for lunch.
('Wayne', 'Louise')
[Wayne] went to pick up his son [Jacob] from the baseball practice. [Jacob] was going to meet his wife, [Louise], for lunch.
[{('Wayne', 'daughter-in-law', 'Louise'): [('Wayne', 'son', 'Jacob'), ('Jacob', 'wife', 'Louise')]}]
['son', 'wife']