A shoe shiner waits for customers.
A boy waits to shine shoes.
not all the shoes are enough shiner
exists x1 x2 x3 x4.(a_topic(x1) & for(x1,x4) & n_customer(x4) & n_wait(x1) & of(x1,x3) & n_shiner(x3) & of(x1,x2) & n_shoe(x2))
exists e1 p1 x1.(Topic(e1,p1) & Actor(e1,x1) & v_wait(e1) & exists e2 x2.(Theme(e2,x2) & Actor(e2,x1) & v_shine(e2) & n_shoe(x2)) & n_boy(x1))