[Ronald]'s brother, [Allan], brought the car over to help him. [Robert] is a man with a son named [Allan]. [Beverly] went car shopping with her brother [Robert]. [Marie]'s son called [Ronald] is good and intelligent boy
('Marie', 'Beverly')
[Marie]'s son called [Ronald] is good and intelligent boy [Ronald]'s brother, [Allan], brought the car over to help him. [Robert] is a man with a son named [Allan]. [Beverly] went car shopping with her brother [Robert].
[{('Marie', 'sister', 'Beverly'): [('Marie', 'son', 'Ronald'), ('Ronald', 'aunt', 'Beverly')]}, {('Ronald', 'aunt', 'Beverly'): [('Ronald', 'father', 'Robert'), ('Robert', 'sister', 'Beverly')]}, {('Ronald', 'father', 'Robert'): [('Ronald', 'brother', 'Allan'), ('Allan', 'father', 'Robert')]}]
['son', 'brother', 'father', 'sister']