[Pedro], who is [Allan]'s uncle, got [Allan] the video game he wanted for his birthday. [Ronald]'s sister, [Angelica], participated in the dance contest. [Angelica]'s mom, [Marie], has recently taken art classes. [Marie]'s son, [Allan], went with her to the store to buy candy for Halloween.
('Ronald', 'Pedro')
[Ronald]'s sister, [Angelica], participated in the dance contest. [Angelica]'s mom, [Marie], has recently taken art classes. [Marie]'s son, [Allan], went with her to the store to buy candy for Halloween. [Pedro], who is [Allan]'s uncle, got [Allan] the video game he wanted for his birthday.
[{('Ronald', 'uncle', 'Pedro'): [('Ronald', 'mother', 'Marie'), ('Marie', 'brother', 'Pedro')]}, {('Ronald', 'mother', 'Marie'): [('Ronald', 'sister', 'Angelica'), ('Angelica', 'mother', 'Marie')]}, {('Marie', 'brother', 'Pedro'): [('Marie', 'son', 'Allan'), ('Allan', 'uncle', 'Pedro')]}]
['sister', 'mother', 'son', 'uncle']