Saturday's library

On Saturday morning, although there were many people in the library, it was quiet inside. You see, some children are absorbed in reading books, and they read them with relish. How serious they are! Other children are choosing from left to right, looking for their favorite books everywhere.

There are four children absorbed in reading, two of them are standing and the other two are sitting. All the people standing are boys. Their names are Xiao Ming and Xiao Lin. The people sitting there are all girls. Their names are Xiaohong and Xiaomei. What books are these two girls reading? It turns out that Xiaohong is reading a story book and Xiaomei is reading a story book. So what books are boys reading? Both boys are reading weapons books.