[Dorothy]'s son Jospeh and other son [Jeffrey] were fixing her car while [James]'s father, [Pedro], prepared drinks. [Jeffrey]'s aunt, [Marie], asked [Jeffrey] to mow the lawn for her. [Jeffrey] said he could n't because he had a bad back.
('Pedro', 'Marie')
[Dorothy]'s son Jospeh and other son [Jeffrey] were fixing her car while [James]'s father, [Pedro], prepared drinks. [Jeffrey]'s aunt, [Marie], asked [Jeffrey] to mow the lawn for her. [Jeffrey] said he could n't because he had a bad back.
[{('Pedro', 'sister', 'Marie'): [('Pedro', 'son', 'James'), ('James', 'aunt', 'Marie')]}, {('James', 'aunt', 'Marie'): [('James', 'mother', 'Dorothy'), ('Dorothy', 'sister', 'Marie')]}, {('Dorothy', 'sister', 'Marie'): [('Dorothy', 'son', 'Jeffrey'), ('Jeffrey', 'aunt', 'Marie')]}]
['son', 'mother', 'son', 'aunt']