Three men working with a locomotive.
Three men are eating near a train
If three men are working with a locomotive they are not eating near a train.
exists e1 x1 x2 x3.(a_topic(x1) & with(e1,x3) & n_locomotive(x3) & Actor(e1,x2) & v_work(e1) & (x1 = x2) & n_man(x1) & card_eq_3(x1))
exists e1 x1 x2.(near(e1,x2) & n_train(x2) & Actor(e1,x1) & v_eat(e1) & n_man(x1) & card_eq_3(x1))