[Antonio]'s son, [Bernardo], had been misbehaving, so [Antonio] had to spank him. [Tracy]'s son [Bernardo] and son [Bobby] went to the park together to play. [Antonio] and his son [Aaron] went to the skating rink.
('Aaron', 'Bobby')
[Antonio] and his son [Aaron] went to the skating rink. [Antonio]'s son, [Bernardo], had been misbehaving, so [Antonio] had to spank him. [Tracy]'s son [Bernardo] and son [Bobby] went to the park together to play.
[{('Aaron', 'brother', 'Bobby'): [('Aaron', 'mother', 'Tracy'), ('Tracy', 'son', 'Bobby')]}, {('Aaron', 'mother', 'Tracy'): [('Aaron', 'brother', 'Bernardo'), ('Bernardo', 'mother', 'Tracy')]}, {('Aaron', 'brother', 'Bernardo'): [('Aaron', 'father', 'Antonio'), ('Antonio', 'son', 'Bernardo')]}]
['father', 'son', 'mother', 'son']