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[protege-owl] SPARQL help to write a query

Thomas Russ tar at ISI.EDU
Mon Aug 11 11:52:22 PDT 2008


As a general bit of advice, you may have more success doing this using  
SQWRL rather than SPARQL.

SPARQL operates at the syntactic level of the serialization of your  
OWL knowledge base.  But since there are multiple, semantically  
equivalent ways to serialize an OWL model, you may not be able to  
predict exactly what the syntactic form will be.  So you might have to  
write queries that handle all of the variants.

Or you could use a query language like SQWRL which understands the  
semantics and operates on that.





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