The boy swings next to the barn.
A boy swings by the barn while his mom watches him.
His mom may not be watching. She could be doing something else.
exists e1 x1 x2.(n_barn(x2) & n_boy(x1) & to(e1,x2) & r_next(e1) & Actor(e1,x1) & v_swing(e1))
(x)