[James] went fishing with his uncle [Robert]. [James] and his father [Pedro] went jogging by the lake. [Marie] and her husband [Robert] took her son [Allan] to the store to pick out some sweets after dinner.
('Pedro', 'Allan')
[James] and his father [Pedro] went jogging by the lake. [James] went fishing with his uncle [Robert]. [Marie] and her husband [Robert] took her son [Allan] to the store to pick out some sweets after dinner.
[{('Pedro', 'nephew', 'Allan'): [('Pedro', 'brother', 'Robert'), ('Robert', 'son', 'Allan')]}, {('Robert', 'son', 'Allan'): [('Robert', 'wife', 'Marie'), ('Marie', 'son', 'Allan')]}, {('Pedro', 'brother', 'Robert'): [('Pedro', 'son', 'James'), ('James', 'uncle', 'Robert')]}]
['son', 'uncle', 'wife', 'son']