interesting thing is that you can actually perform all these tasks in any kind of fashion you can't you like you can so that the order of time is not so important you can pick anything as the context and anything is target so you can actually predict from the future and go to the past as well or you could even mask something in the middle and use everything else as to context so it's it's totally up to you to how to frame what is the context and what is the target in CPC but based on how you frame it you should make sure that the