[Jeffrey] bought a new refrigerator for his mother [Dorothy]. [Beverly]'s sister, [Dorothy], recently started acting. [Jeffrey] went skiing with his brother [James]. [James]'s sister [Rebecca] watched from the ski lodge.
('Rebecca', 'Beverly')
[Jeffrey] went skiing with his brother [James]. [James]'s sister [Rebecca] watched from the ski lodge. [Jeffrey] bought a new refrigerator for his mother [Dorothy]. [Beverly]'s sister, [Dorothy], recently started acting.
[{('Rebecca', 'aunt', 'Beverly'): [('Rebecca', 'mother', 'Dorothy'), ('Dorothy', 'sister', 'Beverly')]}, {('Rebecca', 'mother', 'Dorothy'): [('Rebecca', 'brother', 'James'), ('James', 'mother', 'Dorothy')]}, {('James', 'mother', 'Dorothy'): [('James', 'brother', 'Jeffrey'), ('Jeffrey', 'mother', 'Dorothy')]}]
['brother', 'brother', 'mother', 'sister']