Many middle eastern people are sitting in the back of a blue truck.
The people sitting in the truck are from Mexico.
The people are middle eastern so they can't be from Mexico.
exists e1 s1 s2 s3 x1 x2 x3.(n_back(x2) & in(e1,x2) & of(x2,x3) & n_truck(x3) & a_blue(s3) & Theme(s3,x3) & Actor(e1,x1) & v_sit(e1) & n_people(x1) & a_eastern(s2) & Theme(s2,x1) & a_middle(s1) & Theme(s1,x1) & n_quantity(x1))
exists e1 p1 x1 x2 x3 x4.(ne_geo_mexico(x4) & n_truck(x3) & n_people(x1) & from(x1,x4) & in(e1,x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2))