People standing and waiting for a train.
People standing and waiting.
People standing means they are waiting.
exists e2 e1 x1 x2 x3.(for(e2,x3) & n_train(x3) & Actor(e2,x2) & v_wait(e2) & n_people(x2) & Actor(e1,x1) & v_stand(e1) & n_people(x1))
exists e2 e1 x1 x2.(Actor(e2,x2) & v_wait(e2) & n_people(x2) & Actor(e1,x1) & v_stand(e1) & n_people(x1))