need to start with actually going into a vector space to use these models but they don't they they then then in kind of transform these through the transform layers they also use segments embeddings and segments embeddings as you can see here is simply a kind of a binary label EI being the label for the first sentence and E being the label for today the second sentence so just the model can differentiate which one's the first which one's the second because it's kind of hard to learn for a transformer architecture that the tokens kind of