Social

  Since entities in the world tend to interact with other entities on more than a simple physical level, there is a need to capture this with the social domain. Social agents would include entities such as boss, student, and professor--these all describe a relationship on the social level. Objects within the social domain would include the teaching-student relationship. Finally, actions would include processes such as firing someone or making a new friend; in the case of Zoo, we see an action of selling occurring.