How to pick different versions of the same sprite ? - Construct 2

I would like to make this man appear in any other random black hole when he gets into one. I have attached the event sheet below. Game

As you can see below, in my events, I wrote random(BlackHole.X and random(BlackHole.Y when it comes to the positions where to spawn back. The guy keeps appearing in the same Black Hole and doesn't take into account the others. How can I get this to work? I know I need UIDs but I can't get to choose different BlackHole sprites through them. Events

Thank you for you time

Jad