emerging out of CT vector in the diagram you can think of a different W matrix being used for each of these different prediction time steps and each of them corresponds to say hey predict one step ahead or parade two steps ahead predict three steps and so forth and you can think of all them is trying to make the representations learn different things and because you are optimizing all of them at once you're trying to learn a really rich representation that is able to do lots of different sub supervised dance at once so it constructs a whole