[Wayne] was playing football with his brother, [George]. [Wayne]'s brother, [Nicholas], had a broken leg and could only watch.
('Nicholas', 'George')
[Wayne] was playing football with his brother, [George]. [Wayne]'s brother, [Nicholas], had a broken leg and could only watch.
[{('Nicholas', 'brother', 'George'): [('Nicholas', 'brother', 'Wayne'), ('Wayne', 'brother', 'George')]}]
['brother', 'brother']