[Richard] has an awesome mom named [Cindy]. [Cindy] has a lovely husband named [Francisco]. [Richard] and his grandfather, [James], went to watch the ball game together.
('Francisco', 'James')
[Richard] has an awesome mom named [Cindy]. [Cindy] has a lovely husband named [Francisco]. [Richard] and his grandfather, [James], went to watch the ball game together.
[{('Francisco', 'father-in-law', 'James'): [('Francisco', 'wife', 'Cindy'), ('Cindy', 'father', 'James')]}, {('Cindy', 'father', 'James'): [('Cindy', 'son', 'Richard'), ('Richard', 'grandfather', 'James')]}]
['wife', 'son', 'grandfather']