A mustachioed man operates a piece of heavy construction equipment from the cab.
A man is operating a large crane.
A piece of equipment could be a large crane or a bulldozer or other vehicles.
exists e1 s1 s2 x1 x2 x3 x4 x5.(n_cab(x5) & Theme(e1,x2) & Actor(e1,x1) & v_operate(e1) & from(x2,x5) & of(x2,x3) & n_equipment(x3) & of(x3,x4) & n_construction(x4) & a_heavy(s2) & Theme(s2,x3) & n_piece(x2) & n_man(x1) & a_mustachioed(s1) & Theme(s1,x1))
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_operate(e1) & n_crane(x2) & a_large(s1) & Theme(s1,x2) & n_man(x1))