A variety of folks in the back of a large wagon.
The people on the wagon are of different racial backgrounds.
You can not infer there are racial backgrounds.
exists s1 x1 x2 x3 x4.(n_back(x3) & a_topic(x1) & of(x1,x2) & in(x2,x3) & of(x3,x4) & n_wagon(x4) & a_large(s1) & Theme(s1,x4) & n_folk(x2) & n_variety(x1))
exists p1 s2 x1 x2 x4.(n_background(x4) & a_racial(s2) & Theme(s2,x4) & n_wagon(x2) & n_people(x1) & exists s1 x3.(of(x1,x3) & -(x3 = x4) & n_background(x3) & a_racial(s1) & Theme(s1,x3)) & on(x1,x2))