Several Asian people are on a train.
A bunch of Asian people are standing on a train.
They are not necessarily standing; they could be sitting on the train.
exists p1 s1 s2 x1.(exists x2.(on(x1,x2) & n_train(x2)) & n_people(x1) & a_asian(s2) & Theme(s2,x1) & a_several(s1) & Theme(s1,x1))
exists e1 s1 x1 x2 x3.(on(e1,x3) & n_train(x3) & Actor(e1,x1) & v_stand(e1) & of(x1,x2) & n_people(x2) & a_asian(s1) & Theme(s1,x2) & n_bunch(x1))