Tom: Look, there is a bag under the chair.
Mike: Oh, whose bag is that? 
Tom: I don’t know. 
Mike: Let’s check it. 
Tom: Ok. 
Mike: Look, there are many books in the bag? 
Tom: But it does not have name on them. 
Mike: Look, there is a black pen. I think it is Mary’s. I have seen it this morning. 
Tom: Oh, I have seen it too. 
Mike: I know her home, let’s give it back to her. 
Tom: All right.