[Dorothy] gave her brother [Robert] a new sweater for Christmas. [Antonio] was having dinner with his brother [Robert], when his son [Bernardo] came in to chat. [Bernardo] told them that his brother [Aaron] was coming over later.
('Dorothy', 'Aaron')
[Dorothy] gave her brother [Robert] a new sweater for Christmas. [Antonio] was having dinner with his brother [Robert], when his son [Bernardo] came in to chat. [Bernardo] told them that his brother [Aaron] was coming over later.
[{('Dorothy', 'nephew', 'Aaron'): [('Dorothy', 'brother', 'Antonio'), ('Antonio', 'son', 'Aaron')]}, {('Antonio', 'son', 'Aaron'): [('Antonio', 'son', 'Bernardo'), ('Bernardo', 'brother', 'Aaron')]}, {('Dorothy', 'brother', 'Antonio'): [('Dorothy', 'brother', 'Robert'), ('Robert', 'brother', 'Antonio')]}]
['brother', 'brother', 'son', 'brother']