[Rebecca] called her brother, [Roberto], up to see how he was doing after surgery. [Antonio] was happy that his son [Bobby] was doing well in college. [Rebecca] loves painting with her father. His name is [Pedro]. [Pedro] is [Bobby]'s mom's brother.
('Antonio', 'Roberto')
[Antonio] was happy that his son [Bobby] was doing well in college. [Pedro] is [Bobby]'s mom's brother. [Rebecca] loves painting with her father. His name is [Pedro]. [Rebecca] called her brother, [Roberto], up to see how he was doing after surgery.
[{('Antonio', 'nephew', 'Roberto'): [('Antonio', 'brother', 'Pedro'), ('Pedro', 'son', 'Roberto')]}, {('Pedro', 'son', 'Roberto'): [('Pedro', 'daughter', 'Rebecca'), ('Rebecca', 'brother', 'Roberto')]}, {('Antonio', 'brother', 'Pedro'): [('Antonio', 'son', 'Bobby'), ('Bobby', 'uncle', 'Pedro')]}]
['son', 'uncle', 'daughter', 'brother']