[Michelle] and her sister [Elsie] went out to eat with [Michelle]'s father, [Robert]. [Antonio] and his brother [Robert] went out for lunch. [Antonio] had a burger, and [Robert] had a chicken sandwich. [Elsie] called her brother, [Allan], up to see how he was doing after surgery.
('Antonio', 'Allan')
[Antonio] and his brother [Robert] went out for lunch. [Antonio] had a burger, and [Robert] had a chicken sandwich. [Michelle] and her sister [Elsie] went out to eat with [Michelle]'s father, [Robert]. [Elsie] called her brother, [Allan], up to see how he was doing after surgery.
[{('Antonio', 'nephew', 'Allan'): [('Antonio', 'brother', 'Robert'), ('Robert', 'son', 'Allan')]}, {('Robert', 'son', 'Allan'): [('Robert', 'daughter', 'Michelle'), ('Michelle', 'brother', 'Allan')]}, {('Michelle', 'brother', 'Allan'): [('Michelle', 'sister', 'Elsie'), ('Elsie', 'brother', 'Allan')]}]
['brother', 'daughter', 'sister', 'brother']