[Paul] gave his mother [Beverly] flowers on her birthday. [Pedro] called his brother, [Robert], to confirm when [Robert]'s sister, [Beverly], was coming to the dinner. [Paul] and his brother [Samuel] went to see a baseball game on Friday and had a great time.
('Samuel', 'Pedro')
[Paul] and his brother [Samuel] went to see a baseball game on Friday and had a great time. [Paul] gave his mother [Beverly] flowers on her birthday. [Pedro] called his brother, [Robert], to confirm when [Robert]'s sister, [Beverly], was coming to the dinner.
[{('Samuel', 'uncle', 'Pedro'): [('Samuel', 'mother', 'Beverly'), ('Beverly', 'brother', 'Pedro')]}, {('Samuel', 'mother', 'Beverly'): [('Samuel', 'brother', 'Paul'), ('Paul', 'mother', 'Beverly')]}, {('Beverly', 'brother', 'Pedro'): [('Beverly', 'brother', 'Robert'), ('Robert', 'brother', 'Pedro')]}]
['brother', 'mother', 'brother', 'brother']