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.
兩只鳥
老師: 這兒有兩只鳥,一只是麻雀。誰能指出哪只是燕子,哪只是麻雀嗎?
學生:我指不出,但我知道答案。
老師:請說說看。
學生:燕子旁邊的就是麻雀,麻雀旁邊的就是燕子。