Craftsman is working with wood and a nail gun.
A craftsman is building a bookcase.
A craftsman could be building anything. We do not know he is building a bookcase.
exists e1 x1 x2 x3 x4 x5.(ne_nam_craftsman(x1) & with(e1,x2) & subset_of(x4,x2) & n_gun(x4) & of(x4,x5) & n_nail(x5) & subset_of(x3,x2) & n_wood(x3) & Actor(e1,x1) & v_work(e1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_build(e1) & n_bookcase(x2) & n_craftsman(x1))