Several Asian people are on a train.
Asian people on the train on vacation
Just because you are on a train doesn't mean you are on vacation.
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 s1 x1 x2 x3.(n_train(x2) & a_topic(x1) & on(x1,x2) & on(x2,x3) & n_vacation(x3) & n_people(x1) & a_asian(s1) & Theme(s1,x1))