RT，对于以下这组数据：

1
you like dogs.
who like dogs?
bye!

两篇在SPOJ上通过了的题解输出的都是

Dialogue #1:
who like dogs?
I don't know.

bye!

但是按照题面，应该输出

Dialogue #1:
who like dogs?
I like dogs.

bye!

求问是我读错题了还是？