Some people stand by some poles on some kind of bus or train.
the people are sitting
People either stand or are sitting.
exists e1 x1.((exists x2 x3 x4.(by(e1,x2) & on(x2,x3) & of(x3,x4) & n_bus(x4) & n_kind(x3) & n_pole(x2)) | exists x5.(by(e1,x5) & n_train(x5))) & Actor(e1,x1) & v_stand(e1) & n_people(x1))
exists e1 x1.(n_people(x1) & Actor(e1,x1) & v_sit(e1))