[James] and his brother [Tony] both played soccer. [James] was faster, but [Tony] had a better shot, so they complemented each other well. [Tony] was going to celebrate Christmas with his grandfather [Clarence].
('James', 'Clarence')
[James] and his brother [Tony] both played soccer. [James] was faster, but [Tony] had a better shot, so they complemented each other well. [Tony] was going to celebrate Christmas with his grandfather [Clarence].
[{('James', 'grandfather', 'Clarence'): [('James', 'brother', 'Tony'), ('Tony', 'grandfather', 'Clarence')]}]
['brother', 'grandfather']