A cowboy on a horse has a lasso above his head.
a cowboy is using a lasso.
A lasso above his head is the same as using a lasso.
exists e1 x1 x2 x3 x4.(Theme(e1,x3) & Actor(e1,x1) & v_have(e1) & above(x3,x4) & n_head(x4) & of(x4,x1) & n_male(x1) & n_lasso(x3) & on(x1,x2) & n_horse(x2) & n_cowboy(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_use(e1) & n_lasso(x2) & n_cowboy(x1))