| ++PhiloSURFical: in order to maintain compatibility with FRBR we created another propositional-content, which is work. This is an entity referring to any self-contained and identifiable content of an information-object, similarly to Cyc's Conceptual_work. As such, this class is the result of a conceptualization which is orthogonal to the one used in Mizoguchi's analysis. Thus, many of the other classes under design-proposition or product-proposition just mentioned can also be rightfully considered as subclasses of work.
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