1. Sheet 9 RDF

2. Organization Exam will be on Tue. 17.07.2007 from 10- 12 Room A9 Please register via email Old exams are posted Exams have English and German version

3. @prefix r:.http://ismll.de/rdf/uni# r: uniHI r:locatedat r: uniHI_location. r: uniHI_location r:street “Marienburger Platz 22”; r:ZIP “31134”; r:city “Hildesheim”; r:country “Germany”.

4. r:uniHI Marienburger…. 31134 Hildesheim Germany r:locatedat r:street r:ZIP r:city r:country @prefix r:.http://ismll.de/rdf/uni# r: uniHI r:locatedat _:abc. _:abc r:street “Marienburger Platz 22”; r:ZIP “31134”; r:city “Hildesheim”; r:country “Germany”.

5. What’s wrong? @prefix r:.http://ismll.de/rdf/uni# r: uniHI _:locatedat r: uniHI_location. r: uniHI_location r:street “Marienburger Platz 22”; r:ZIP “31134”; r:city “Hildesheim”; r:country “Germany”. @prefix r:.http://ismll.de/rdf/uni# “Uni HI” r:locatedat r: uniHI_location. r: uniHI_location r:street “Marienburger Platz 22”; r:ZIP “31134”; r:city “Hildesheim”; r:country “Germany”.

7. @prefix xs:. @prefix p:. @prefix :. :Products rdf:type rdfs:Class. : title rdf:type rdf:Property; rdf:domain :Products; rdf:range xs:string. : price rdf:type rdfs:Property; rdf:domain :Products; rdf:range xs:decimal. : Book rdf:type rdfs:subClassOf:Products. :author rdf:type rdf:Property; rdf:domain :Book; rdf:range xs:string. : CD rdf:type rdfs:subClassOf:Products. :interpret rdf:type rdf:Property; rdf:domain :CD; rdf:range xs:string. : DVD rdf:type rdfs:subClassOf:Products. :director rdf:type rdf:Property; rdf:domain :DVD; rdf:range xs:string. :title rdf:type rdf:Property; rdf:domain :book; rdf:domain :cd; rdf:domain :dvd; rdf:range xs:string. :price rdf:type rdf:Property; rdf:domain :book; rdf:domain :cd; rdf:domain :dvd; rdf:range xs:decimal. :book :title „Learning XML“. :book :author „EricRay“. :book :price „30.00“. :cd :title „for you“. :cd :interpret „Frank Chastenier“. :cd :price „15.00“. :dvd :title „Goldrush“. :dvd :director „Charly Chaplin“. :dvd :price „19.00“.

9. <!DOCTYPE rdf:RDF [ ]>

10. 5 5

11. rdf:ID vs. rdf:about The rdf:ID (node element) can be used instead of rdf:about E.g. rdf:ID="name", the same as rdf:about="#name". rdf:ID provides an additional check name can only appear once

12. Redland Raptor RDF Parser Demonstration http://librdf.org/parse