There is a red truck behind the horses.
The brown truck is sitting inside a circus tent.
The brown truck is behind the horses.
exists p1 x1 x3.(n_horse(x3) & exists s1 x2.((x1 = x2) & behind(x2,x3) & n_truck(x2) & a_red(s1) & Theme(s1,x2)))
exists e1 s1 x1 x2 x3.(n_truck(x1) & a_brown(s1) & Theme(s1,x1) & inside(e1,x2) & n_tent(x2) & of(x2,x3) & n_circus(x3) & Actor(e1,x1) & v_sit(e1))