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[protege-owl] online SPARQL query tool
babarathotmail at yahoo.com
Thu Mar 26 04:16:13 PDT 2009
Sorry for inconvenience, it was kind of a mess really.
change of lab may also disperses thoughts.
I refine question about exporting an ontology to some triple store: Actually I am concerned about namespaces. Like there is a query on Jena-SPARQL tutorial,
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
?contributor foaf:name "Jon Foobar" .
?contributor foaf:weblog ?url .
I am concerned about " FROM <bloggers.rdf> " part. Since I am using Allegrograph, I saved ontology as RDF/XML,
say 'example.owl' & exported it to triple store created using Allegrograpg. Since I am having difficulties in
running queries against it, so I am concerned about should I use 'example.owl' at 'bloggres.rdf' place ?
I have one more question about inferencing. As Authors of SEMANTIC WEB FOR WORKING ONTOLOGIIST: JIM HENDLER et al
says" RDFS: operates on small no of inference rules that deals mostly with relating classes to sub classes &
properties to classes. OWL: builds further to include constraints on properties & notion of equality".
So when we export our Ontology to a triple store, whats the matter with those needed(say) inferencing that's is
supported by OWL ???
Babar Shahzad Chaudary,
Deptt of Information Processing
University of Oulu, Finland.
----- Original Message ----
From: Tania Tudorache <tudorache at stanford.edu>
To: User support for the Protege-OWL editor <protege-owl at lists.stanford.edu>
Sent: Thursday, March 26, 2009 2:54:12 AM
Subject: Re: [protege-owl] online SPARQL query tool
I am not sure what the question is, but you can ask SPARQL queries in
Protege 3.4. Go to the Reasoning Menu -> Enable SPARQL panel.
If your ontology is stored in a triplestore, then you can probably use
some user interface or script provided by the triplestore to make the
babar shahzad wrote:
> Hi all,
> Can any one recommend me some online SPARQL query tool ?
> I tried to use Twinkle but "java -jar twinkle.jar" does not work
> There is a SPARQL utility available in 3.4. Does it have same syntax/kind of queries as would have been used for some ontology exported to a triple store utility like Alegrograph?
> Is p3.4 a good choice to practice SPARQL merely or some else ??? Remember that my ontology resides in a triple store So I need to query it. Why I am asking 3.4 is I am more comfortable in playing with protege environment.
> thanks for any help in advance.
> Babar Shahzad Chaudary,
> Deptt of Information Processing
> University of Oulu, Finland.
> protege-owl mailing list
> protege-owl at lists.stanford.edu
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