[Tracy] went shopping with her son [Bobby] and her brother [Robert]. [Bobby] loves hearing stories from his aunt [Beverly]. [Robert] and his brother [Pedro] went to the carnival. [Pedro] wanted to ride the Ferris wheel, but [Robert] insisted they go on the bumper cars first.
('Pedro', 'Beverly')
[Robert] and his brother [Pedro] went to the carnival. [Pedro] wanted to ride the Ferris wheel, but [Robert] insisted they go on the bumper cars first. [Tracy] went shopping with her son [Bobby] and her brother [Robert]. [Bobby] loves hearing stories from his aunt [Beverly].
[{('Pedro', 'sister', 'Beverly'): [('Pedro', 'brother', 'Robert'), ('Robert', 'sister', 'Beverly')]}, {('Robert', 'sister', 'Beverly'): [('Robert', 'sister', 'Tracy'), ('Tracy', 'sister', 'Beverly')]}, {('Tracy', 'sister', 'Beverly'): [('Tracy', 'son', 'Bobby'), ('Bobby', 'aunt', 'Beverly')]}]
['brother', 'sister', 'son', 'aunt']