Teacher: Here are two birds, one is a swallow, the other is sparrow. Now who can tell us which is which?
老师: 这儿有两只鸟,一只是麻雀。谁能指出哪只是燕子,哪只是麻雀吗?

Student: I cannot point out but I know the answer. 
学生:我指不出,但我知道答案。

Teacher: Please tell us.
老师:请说说看。

Student: The swallow is beside the sparrow and the sparrow is beside the swallow. 
学生:燕子旁边的就是麻雀,麻雀旁边的就是燕子。