Children wear soccer uniforms.
Children are on a school bus
Wearing uniforms doesn't have to do with being on a bus.
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_wear(e1) & n_uniform(x2) & of(x2,x3) & n_soccer(x3) & n_child(x1))
exists p1 x1.(exists x2 x3.(on(x1,x2) & n_bus(x2) & of(x2,x3) & n_school(x3)) & n_child(x1))