 [求助]protege中使用SQWRLQueryTab出现错误
我使用的是protege3.4bate，配置的是的jess7.1，用SQWRLQueryTab执行family本体中的query1语句时，出现错误：
Exception running SQWRL queries: error running SQWRL queries: Jess reported an error in routine HasLHS.addPattern.
Message: Variable used before definition: http://a.
Program text: ( defrule Def-hasSon ( http://a.com/ontology#hasChild ?http://a.com/ontology#x ?http://a.com/ontology#y ) ( http://a.com/ontology#Person ( name ?http://a.com/ontology#x ) ) ( http://a.com/ontology#Man ( name ?http://a.com/ontology#y ) ) = > ( assert ( http://a.com/ontology#hasSon ?http://a.com/ontology#x ?http://a.com/ontology#y ) ) ( assertOWLProperty http://a.com/ontology#hasSon ?http://a.com/ontology#x ?http://a.com/ontology#y ) ) at line 1 in file <eval pipe>.
请问各位，这是为什么啊?要怎么解决阿？拜谢了！
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2008/8/3 23:24:00
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