deletions | additions       diff --git a/Models.tex b/Models.tex  index 370ddf1..90b922b 100644  --- a/Models.tex  +++ b/Models.tex 
...
Therefore, it is important to simplify things instead of modeling the world directly.  Learning a dog how to reach a target is trivial, and even moving one sheep to a targes should not be too difficult.   Things get really interested when there are multiple sheep and dogs, and when dogs try to cooperate.  We propose to, at the very least, try to use two dogs and see whether they can work together without communication. Hence, both dogs are controlled by their own AI, and they take their own decisions.   However, they are aware of the other dog's position and can use that to take actions.