A construction worker pulls a whaler.
a man pulls a whaler
The construction worker has to be a man.
exists e1 x1 x2 x3.(Theme(e1,x3) & Actor(e1,x1) & v_pull(e1) & n_whaler(x3) & n_worker(x1) & of(x1,x2) & n_construction(x2))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_pull(e1) & n_whaler(x2) & n_man(x1))