My friends and I talked about the AWS that day, because I don’t know how to get to this knowledge, so I think it is to ask a friend, a friend is doing this aspect of the work, so I think he should be on the AWS is very understanding, and he is my best friend. As long as he is, he will know, without reservation to me, so I started to think about AWS is to learn some knowledge to him, anyway, I think, recently we had the knowledge about AWS is really very much, but I really on it is not to understand, but I do not know from He Xueqi, so I think to a friend, I think he told me some knowledge is very useful, because he is in this area of research is really very much.