A man painting on the floor.
A man is lying on a scaffolding and painting a mural on the ceiling.
One usually can't paint on the floor and the ceiling at the same time.
exists x1 x2 x3.(n_floor(x3) & a_topic(x1) & on(x1,x3) & n_painting(x1) & of(x1,x2) & n_man(x2))
exists e1 x1 x2 x3 x4.(n_ceiling(x4) & on(e1,x4) & on(e1,x2) & all x5.(n_mural(x5) -> exists x6.(subset_of(x6,x2) & for(x6,x5) & n_painting(x6))) & subset_of(x3,x2) & n_scaffolding(x3) & Actor(e1,x1) & v_lie(e1) & n_man(x1))