[Bernard] and his sister [Amanda] went out for ice cream. [Bernard] took his grandmother [Michelle] out to lunch. [Bernard] played chess with his brother [David].
[Bernard] played chess with his brother [David]. [Bernard] took his grandmother [Michelle] out to lunch.
[{('David', 'grandmother', 'Michelle'): [('David', 'brother', 'Bernard'), ('Bernard', 'grandmother', 'Michelle')]}]