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Why does the web ontology language restrict expressiveness deliberately?

  • A.To make the syntax easier for people to write
  • B.To reduce the storage required for large ontologies
  • C.To prevent contradictory ontologies from being published
  • D.To keep reasoning decidable at web scale

Answer: D

Adopting a description logic fragment ensures that subsumption and consistency remain decidable, and several profiles trade expressiveness against complexity for different applications. Readability, storage and contradiction are not the reason. That a standard intended for enormous data volumes should choose its logic for tractability rather than power is the same trade that runs through the whole subject, made explicit in a published specification.

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