[Dorothy] is the lovely aunt of [Bernardo] [Pedro] went to the movies with his son [Roberto]. [Pedro]'s wife [Dorothy] stayed home to cook dinner. [Tracy] took her son [Bernardo] to the mall to shop for school clothes.
('Tracy', 'Roberto')
[Tracy] took her son [Bernardo] to the mall to shop for school clothes. [Dorothy] is the lovely aunt of [Bernardo] [Pedro] went to the movies with his son [Roberto]. [Pedro]'s wife [Dorothy] stayed home to cook dinner.
[{('Tracy', 'nephew', 'Roberto'): [('Tracy', 'sister', 'Dorothy'), ('Dorothy', 'son', 'Roberto')]}, {('Tracy', 'sister', 'Dorothy'): [('Tracy', 'son', 'Bernardo'), ('Bernardo', 'aunt', 'Dorothy')]}, {('Dorothy', 'son', 'Roberto'): [('Dorothy', 'husband', 'Pedro'), ('Pedro', 'son', 'Roberto')]}]
['son', 'aunt', 'husband', 'son']