[Ashley] takes her son [Nicholas] to the park every Saturday. [Nicholas] and his brother [Wayne] both played soccer. [Nicholas] was faster, but [Wayne] had a better shot, so they complemented each other well.
('Ashley', 'Wayne')
[Ashley] takes her son [Nicholas] to the park every Saturday. [Nicholas] and his brother [Wayne] both played soccer. [Nicholas] was faster, but [Wayne] had a better shot, so they complemented each other well.
[{('Ashley', 'son', 'Wayne'): [('Ashley', 'son', 'Nicholas'), ('Nicholas', 'brother', 'Wayne')]}]
['son', 'brother']