The man is standing behind his opened back hatch of his vehicle.
A man stands behind the car's open hatch.
Opened back hatch of his vehicle implies car's open hatch.
exists e1 e2 s1 x1 x2 x3 x4 x5.(n_vehicle(x5) & of(x5,x1) & n_male(x1) & n_man(x1) & a_back(s1) & Manner(e2,s1) & Theme(e2,x4) & Actor(e2,x1) & v_open(e2) & of(x4,x5) & n_hatch(x4) & behind(e1,x3) & n_his(x3) & Actor(e1,x2) & v_stand(e1) & (x1 = x2))
exists e1 s1 x1 x2 x3.(n_hatch(x3) & a_open(s1) & Theme(s1,x3) & of(x3,x2) & n_car(x2) & behind(e1,x3) & Actor(e1,x1) & v_stand(e1) & n_man(x1))