consistency by an l1 loss essentially what there's if we unpack this up this objective function is your sample for data in one of your domain probably your source domain and then you map it to you map it to a cycle then it should look like itself in an l1 sense so this is I think what they call forward cycle consistency because it's going from X to Y to X and then they also have a backward one where you essentially kind of think of a sample from oil labels and then you map it through this thing again Y dou X dou Y