[Cindy] does n't like her brother [Hugh]. [Cindy] is a lovely mother. She has a son named [Leonard], who she loves infinitely. [Francisco] was delighted to watch his son [Leonard] steal third base in the Championship baseball game.
('Francisco', 'Hugh')
[Francisco] was delighted to watch his son [Leonard] steal third base in the Championship baseball game. [Cindy] is a lovely mother. She has a son named [Leonard], who she loves infinitely. [Cindy] does n't like her brother [Hugh].
[{('Francisco', 'brother', 'Hugh'): [('Francisco', 'son', 'Leonard'), ('Leonard', 'uncle', 'Hugh')]}, {('Leonard', 'uncle', 'Hugh'): [('Leonard', 'mother', 'Cindy'), ('Cindy', 'brother', 'Hugh')]}]
['son', 'mother', 'brother']