People are standing on a train platform waiting for the train.
People are waiting for a train to come.
one can wait for the train to come by standing in the train platform
exists e1 e2 x1 x2 x3.(for(e1,e2) & for(e2,x3) & n_train(x3) & n_train(x3) & Actor(e2,x1) & v_wait(e2) & on(e1,x2) & n_platform(x2) & of(x2,x3) & Actor(e1,x1) & v_stand(e1) & n_people(x1))
exists e1 p1 x1 x2.(for(e1,x2) & Topic(x2,p1) & exists e2.(Actor(e2,x2) & v_come(e2)) & n_train(x2) & Actor(e1,x1) & v_wait(e1) & n_people(x1))