teacher: here are two birds, one is a swallow, the other is sparrow. now who can tell us which is which?
student: i cannot point out but i know the answer.
teacher: please tell us.
student: the swallow is beside the sparrow and the sparrow is beside the swallow.
2.the fish net
"can you tell me what fish net is made, ann?"
"a lot of little holes tied together with strings." replied the little girl.