- From: Graham Klyne <GK@ninebynine.org>
- Date: Wed, 13 Sep 2006 15:55:33 +0100
- To: public-rdf-dawg-comments@w3.org
Some clarification may help... With reference to: [[ 2.8.4 rdf:type The keyword "a" can be used as a predicate in a triple pattern and is an alternative for the IRI rdf:type which is http://www.w3.org/1999/02/22-rdf-syntax-ns#type. ]] -- http://www.w3.org/TR/rdf-sparql-query/#abbrevRdfType and the example in the same section: [[ ?x rdf:type :Class1 . _:b0 rdf:type :appClass . _:b0 :p "v" . ]] It's not entirely obvious whether the name rdf:type is predeclared, or if this is used must the query also define the rdf: prefix? On balance, I think rdf:type cannot be used without first defining the rdf: prefix -- could this be made clearer? (BTW, I think Jena/ARQ may accept rdf:type without a prefix declaration, but don't have firm evidence of this.) Also, I would assume that the keyword "a" can be used without declaring the rdf: prefix. #g -- Graham Klyne For email: http://www.ninebynine.org/#Contact
Received on Wednesday, 13 September 2006 14:55:46 UTC