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SPARQL queries property or class from a schema

From: Jitao Yang <jitao.yang@gmail.com>
Date: Fri, 12 Aug 2011 18:36:58 +0200
Message-ID: <CALDmnw_P1O5N4YryUHuzNFhv81PfN3uZX6UdFE1P=WAp5-yS3A@mail.gmail.com>
To: semantic-web@w3.org
Dear all,

suppose we have DATA:

@prefix foaf:  <http://xmlns.com/foaf/0.1/> .

_:a  foaf:name   "Johnny Lee Outlaw" .
_:a  foaf:mbox   <mailto:jlow@example.com> .
_:b  foaf:name   "Peter Goodguy" .
_:b  foaf:mbox   <mailto:peter@example.org> .
_:c  foaf:mbox   <mailto:carol@example.org> .


can we write a SPARQL query like:

PREFIX foaf:   <http://xmlns.com/foaf/0.1/>
SELECT *?property*

WHERE{
             ?x  foaf:*?property*  "Peter Goodguy".
}

if we can not, can we write an equivalent SPARQL query? Namely, can we
decompose schema and Class(or Property) in SPARQL query?

Thanks,
Jitao
Received on Friday, 12 August 2011 16:41:04 UTC

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