Near a big rock there is a bottle,some water is in the bottle,a craw is hot and thirsty ,he comes to the bottle,and stands next to the bottle,but
he can't drink the water ,beause the bottle neck is veny long.He thinks and thinks ,then flys away.Aftre a while ,he comes back with a small stone in his mouth.He goes up to the bottle and puts the stone into the bottle,the water in the bottle comes up to it's neck.the craw drink the
water,he is veny happy.