problem is formulated as this here is your data set and then this here is like a different data set but one that's close enough such that you can learn from it and that's usually in in NLP you'll have your data set is like a sentiment classification task but you have all of Wikipedia that is not labeled but it's just text so you can sort of pre train on it in this case we'll be in a situation where will artificially construct a small data set so this entire thing here is going to be the image net data set and this right