Five guys standing outside a building.
Men are standing while waiting for their train.
Just because men are standing it does not mean they are waiting for their train.
exists e1 x1 x2 x3.(a_topic(x1) & outside(e1,x3) & n_building(x3) & Actor(e1,x2) & v_stand(e1) & (x1 = x2) & n_guy(x1) & card_eq_5(x1))
exists e2 e1 x1 x2.(while(e1,e2) & for(e2,x2) & n_train(x2) & of(x2,x1) & n_thing(x1) & Actor(e2,x1) & v_wait(e2) & Actor(e1,x1) & v_stand(e1) & n_man(x1))