okay that's this X and this a cool but then we have SGD as integral part of the procedure to determine the W and now what we could do is just apply a loss to the W but we don't because we don't know what the embedding space for the concepts is we could maybe train a classifier but in this case we want to train the ability to transfer these concepts so our training sample needs to be one time transferring a concept so SGD for one is part of our process here and not only that but then this this X here of course is also part of our