delete this and this right and now I ask you to predict these two right so you can see the the task is slightly different as you now have access to all of the sequence basically except the ones that you are asked to predict but you're you kind of asked to predict yet them not in any order but you're asked to predict them at the same time basically so at the same time you're you're asked to predict this word and this word and so the first kind of this Auto regressive language modeling has been used by transformer models until