Rabbit and Stem Cell Actions

Here is one action that, for the purposes of the problem at hand, is an action that only rabbits can perform (hopping). Actions specific to stem cells are modeled in the exact same manner.

Though the action is modeled as being specific to rabbits a rule needs to exist that states stem cells cannot hop in order to complete this line of thought. Without such a rule it will not be evident that stem cells can't also hop. At this time I have not created such a rule though if time permits I will.

Also note that I have to model for both individual rabbits and collections of rabbits (collections being one of Ehrlich's custom case frames).