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<p>of logic--usually a variation of <a href="page.php?w=first-order_logic">first-order logic</a>--and then to directly execute the logic as though it were a program. The <a href="page.php?w=Web_Ontology_Language">OWL</a> language, based on <a href="page.php?w=description_logic">description logic</a>, is an example. There is also work on mapping some version of English (or another natural language) automatically to and from logic, as well as executing the logic directly. Examples are <a href="page.php?w=Attempto_Controlled_English">Attempto Controlled English</a>,</p><p>
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