The man is standing behind his opened back hatch of his vehicle.
A man looking in his trunk.
The man doesn't have to be looking in his trunk if he is just standing behind it.
exists e2 e1 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 x1 x2 x3.(a_topic(x1) & in(e1,x3) & n_trunk(x3) & of(x3,x1) & n_male(x1) & Actor(e1,x2) & v_look(e1) & (x1 = x2) & n_man(x1))