RE: RDF querying question

I imagine in sparql you could say something like:

	select ?s where {?s ?p ?o. 
		OPTIONAL {?s rdf:type ?x} 
		Filter !bound(?x)}


-Geoff

> -----Original Message-----
> From: semantic-web-request@w3.org [mailto:semantic-web-request@w3.org] On
> Behalf Of Jan Algermissen
> Sent: Tuesday, June 21, 2005 4:55 PM
> To: semantic-web@w3.org
> Subject: RDF querying question
> 
> 
> Hi,
> 
> is it possible (in RDQL or  SPARQL) to query for all nodes that do
> not have
> a certain property at all?
> 
> For example: "Retrieve all nodes that do not have an rdf:type"
> 
> Thanks in advance.
> 
> Jan
> 
> 
>