again has this deterministic mapping so you give you an image X which translated into domain Y and but this translation is deterministic but that is fundamentally not correct at least for a lot of the alignment problems that we care about so let's say if I want you go from mask to image semantic mask to image like there was a lot of different ways to satisfy the same semantic mask there are a lot of different ways to generate that image like semantic mask only tells you there's a car here but what does the car look like what's