X's to eyes what are other ways we can we can set up this problem one way is we train a function of f of X that produces something in the domain Y in the set capital y so we don't tell it what particular y we want we just want it to be in the set of Y's okay and one example of this is generative adversarial networks I'll give a brief overview based on a paper we had a couple last year the colorization example that I showed it had a lot of kind of a ways of hacking it to make it look good and some what you want is you