antecedent

(=>     (instance ?X MultimediaProjector)     (hasPurpose ?X         (exists (?RS ?SCREEN ?VIDEO)             (and                 (instance ?RS RadiatingLight)                 (instrument ?RS ?X)                 (patient ?RS ?VIDEO)                 (or                     (instance ?VIDEO VideoRecording)                     (instance ?VIDEO Image))                 (destination ?RS ?SCREEN)                 (instance ?SCREEN Artifact)                 (attribute ?SCREEN Flat)                 (not                     (connected ?X ?SCREEN))))))

Mid-level-ontology.kif 28115-28129

If a physical is an instance of multimedia projector, then the physical has the purpose there exist an entity, another entity and a third entity such that the entity is an instance of radiating light and the physical is an instrument for the entity and the third entity is a patient of the entity and the third entity is an instance of video recording or the third entity is an instance of image and the entity ends up at the other entity and the other entity is an instance of artifact and flat is an attribute of the other entity and the physical is not connected to the other entity

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