Web 3.0 Examples

Data stolen liberally from http://www.robertprice.co.uk/robblog/archive/2004/10/What_Is_An_RDF_Triple_.shtml - this page gives an excellent explanation of the data. Only the SPARQL query is mine!

RDF Example:

<foaf:knows>

<foaf:Person>

<foaf:nick>Cal</foaf:nick>

<foaf:name>Cal Henderson</foaf:name> <foaf:mbox_sha1sum>2971b1c2fd1d4f0e8f99c167cd85d522a614b07b</foaf:mbox_sha1sum>

<rdfs:seeAlso rdf:resource="http://www.iamcal.com/foaf.xml"/>
</foaf:Person>

</foaf:knows>

SPARQL Example

This SPARQL query selects the names of all the people I know:

PREFIX table: <http://www.foaf.fake/RH#>

SELECT ?name
FROM <http://www.foaf.fake/RH.rdf>

WHERE { ?element table:name ?name. }

Pulls out Cal Henderson from the above file

Triple Example

1	genid:ARP40722	http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://xmlns.com/foaf/0.1/Person
2	genid:ARP40722	http://xmlns.com/foaf/0.1/nick	"Cal"
3	genid:ARP40722	http://xmlns.com/foaf/0.1/name	"Cal Henderson"
4	genid:ARP40722	http://xmlns.com/foaf/0.1/mbox_sha1sum	"2971b1c2fd1d4f0e8f99c167cd85d522a614b07b"
5	genid:ARP40722	http://www.w3.org/2000/01/rdf-schema#seeAlso	http://www.iamcal.com/foaf.xml
6	genid:me	http://xmlns.com/foaf/0.1/knows	genid:ARP40722

webgoddess	Latest page update: made by webgoddess , Sep 10 2008, 6:43 PM EDT (about this update About This Update Edited by webgoddess 21 words added view changes - complete history)
	Keyword tags: rdf semantic web sparql web 3.0 More Info: links to this page