[REQUEST] Interminable Rooms | Entity extravaganza II

req. for a script for the game "interminable rooms"  where when you execute it all it does is notify in chat when an entity spawns or despawns. a GUI isn't needed, though it would be nice ig. It would be preferable what kind of message we write in chat would be, for example, "Hey, {;entity;} has de/spawned!" or smt. If it can be done, thx :)