Three workmen wearing safety hats stand in front of a tractor designed for hauling a large tunnel tube.
The men are at work.
Although they have on safety hats and are standing in front of a tractor, it does not imply they are at work.
exists e2 e3 e4 e1 s1 x1 x2 x3 x4 x5 x6 x7 x8 x9 x10.(in(e2,x5) & of(x5,x6) & for(e3,e4) & Theme(e4,x9) & Actor(e4,x8) & v_haul(e4) & n_tube(x9) & of(x9,x10) & n_tunnel(x10) & a_large(s1) & Theme(s1,x9) & Theme(e3,x7) & v_design(e3) & (x6 = x7) & n_tractor(x6) & n_front(x5) & Actor(e2,x1) & v_stand(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_hat(x3) & of(x3,x4) & n_safety(x4) & (x1 = x2) & n_workman(x1) & card_eq_3(x1))
exists p1 x1.(n_man(x1) & exists x2.(at(x1,x2) & n_work(x2)))