Man holding a water pipe.
Construction needs this pipe to finish.
Holding a water pipe doesn't tell us construction needs this pipe to finish.
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_hold(e1) & n_pipe(x3) & of(x3,x4) & n_water(x4) & (x1 = x2) & n_man(x1))
exists e1 p1 x1 x2 x3.(n_pipe(x3) & Topic(e1,p1) & exists e2.(Actor(e2,x1) & v_finish(e2)) & Theme(e1,x3) & Actor(e1,x2) & v_need(e1) & n_construction(x2) & n_construction(x1))