[Kevin]'s grandfather, [Clarence], took the boy to the store to buy some new shoes. [Lorraine]'s brother [Kevin] was going to be the star in the new show.
('Lorraine', 'Clarence')
[Lorraine]'s brother [Kevin] was going to be the star in the new show. [Kevin]'s grandfather, [Clarence], took the boy to the store to buy some new shoes.
[{('Lorraine', 'grandfather', 'Clarence'): [('Lorraine', 'brother', 'Kevin'), ('Kevin', 'grandfather', 'Clarence')]}]
['brother', 'grandfather']