At first I though of keeping it until the robot came back ( that's what I hoped ) so he would be like grateful that I kept it preciously ahah
But then I realised that it won't happen and that I had to use it. So I gave it to the scientist as @FazlyUU said. This "robot" serves the kingdom well. But now I wanna see what kind of bad use the Sultan will make of it :'D
We'll see if I'm right or not, but for the moment, it seems that the robot brought "happiness" to my citizens when the cog has been used by the scientists. So I assume that when we'll give it to the Sultan, maybe this would bring money ? Because that's his thing -
well its just an assumption-