A baby is sleeping on a blanket.
A baby is using a blanket.
Sleeping on a blanket implies that the baby is using it.
exists e1 x1 x2.(on(e1,x2) & n_blanket(x2) & Actor(e1,x1) & v_sleep(e1) & n_baby(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_use(e1) & n_blanket(x2) & n_baby(x1))