|++Philosurfical: We need this class, cause we need to specify a medium of the manifestation. But this is different from the instance of information-carrier, which is a specific object carrying information. That is, it's one of the items produced as a manifestation, embodied in a specific medium. So the medium, intended as the class of items carrying this feature, is here represented as a type.
Class(REPRESENTATIONAL-MEDIUM partial ROLE)
Class Description/Definition (Necessary Conditions)