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At the Knowledge level, all of the percepts and behaviors of the Perceptuo-Motor level are represented, but in a more symbolic fashion. For instance, colors and shapes have names. The representations at the two levels are connected via the alignment mechanism discussed above. Also at this level is a symbolic map of the room and the objects in it, and the current position of the agent. In general, planning and some learning activities can originate at this level, and reasoning about the environment and the agent's actions, perceptions, goals, desires, states, etc. is confined to this level only. Concepts of space and time would also be represented at this level, perhaps as emergent concepts from the behavior of the agent in its environment.