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<http://dbpedia.org/resource/OPS5>	<http://www.w3.org/2000/01/rdf-schema#comment>	"OPS5 is a rule-based or production system computer language, notable as the first such language to be used in a successful expert system, the R1/XCON system used to configure VAX computers.The OPS (said to be short for \"Official Production System\") family was developed in the late 1970s by Charles Forgy while at Carnegie Mellon University."@en .