[Allan] could n't wait to introduce his new son to his uncle, [Pedro]. [Allan] and his father [Robert] went to the golf course in town on Saturday and had a great time. [Robert] wanted his son, [Allan], to go fishing with him. [Mario] and his brother [Allan] were rarely seen apart.
('Mario', 'Pedro')
[Mario] and his brother [Allan] were rarely seen apart. [Robert] wanted his son, [Allan], to go fishing with him. [Allan] and his father [Robert] went to the golf course in town on Saturday and had a great time. [Allan] could n't wait to introduce his new son to his uncle, [Pedro].
[{('Mario', 'uncle', 'Pedro'): [('Mario', 'father', 'Robert'), ('Robert', 'brother', 'Pedro')]}, {('Mario', 'father', 'Robert'): [('Mario', 'brother', 'Allan'), ('Allan', 'father', 'Robert')]}, {('Robert', 'brother', 'Pedro'): [('Robert', 'son', 'Allan'), ('Allan', 'uncle', 'Pedro')]}]
['brother', 'father', 'son', 'uncle']