[Stephanie] looked all over the house for her son [Michael], but could n't find him. That's because [Michael] was outside in the back yard, playing baseball with his brother [William].
('William', 'Stephanie')
[Stephanie] looked all over the house for her son [Michael], but could n't find him. That's because [Michael] was outside in the back yard, playing baseball with his brother [William].
[{('William', 'mother', 'Stephanie'): [('William', 'brother', 'Michael'), ('Michael', 'mother', 'Stephanie')]}]