A woman is carving an ice sculpture with a knife.
A woman is using a knife on a piece of ice.
To carve, a woman needs to be using a knife.
exists e1 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_carve(e1) & with(x2,x4) & n_knife(x4) & n_sculpture(x2) & of(x2,x3) & n_ice(x3) & n_woman(x1))
exists e1 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_use(e1) & on(x2,x3) & of(x3,x4) & n_ice(x4) & n_piece(x3) & n_knife(x2) & n_woman(x1))