Re: The RDF 1.1 Literal Quiz

Oops, wrong working group! This was meant to go to the RDF-WG list. Sorry for the noise. Feel free to respond off-list, I'm interested in opinions ;-)

Best,
Richard


On 18 May 2011, at 18:29, Richard Cyganiak wrote:

> The RDF 1.1 Literal Quiz
> ------------------------
> 
> Let's pretend we live in the future and RDF 1.1 has just been published, including this working group's attempt to clean up string literals.
> 
> Now here's a quiz with some RDF trivia questions.
> 
> What are the answers that you'd like to see? Please keep them short -- along the lines of “Yes”, “No”, “Don't care”, “Don't prefer but ok”, “Oh yes please please please”, “WTF!?!?”, “Formal objection!”
> 
> (I tried to phrase the questions in terms of user-visible behaviour and not spec-internal mechanisms. I hope we can get some non-controversial test cases out of this, and pinpoint where we disagree on desired behaviour. If you provide responses, then feel free to add additional questions.)
> 
> 
> 
> Q1. Does this RDF graph (written in Turtle) have one triple?
> 
>  <a> <b> 1 .
>  <a> <b> "1"^^xsd:integer .
> 
> Q2. Does this RDF graph (written in Turtle) have one triple?
> 
>  <a> <c> "foo" .
>  <a> <c> "foo"^^xsd:string .
> 
> Q3. Is this be a valid Turtle file?
> 
>  <a> <b> "foo"^^rdf:PlainLiteral .
> 
> Q4. Is a parser allowed to unify "foo" and "foo"^^xsd:string into a single form while parsing?
> 
> Q5. Is this a valid N-Triples file?
> 
>  <a> <b> "foo" .
> 
> Q6. Is this a valid N-Triples file?
> 
>  <a> <b> "foo"^^rdf:PlainLiteral .
> 
> Q7. Is this a valid N-Triples file?
> 
>  <a> <b> "foo"@en .
> 
> Q8. Is this a valid N-Triples file?
> 
>  <a> <b> "foo"^^xsd:string .
> 
> Q9. Is this true in SPARQL?
> 
>  datatype("foo") == xsd:string
> 
> Q10. Is this true in SPARQL?
> 
>  datatype("foo") == error
> 
> Q11. Is this true in SPARQL?
> 
>  datatype("foo") == rdf:PlainLiteral
> 
> Q12. Is this true in SPARQL?
> 
>  datatype("foo"@en) == xsd:string
> 
> Q13. Is this true in SPARQL?
> 
>  datatype("foo"@en) == error
> 
> Q14. Is this true in SPARQL?
> 
>  datatype("foo"@en) == rdf:PlainLiteral
> 
> Q15. Is this true in SPARQL?
> 
>  datatype("foo"@en) == rdflang:en
> 
> Q16. Does the literal in this RDF/XML fragment have a language tag?
> 
>  <rdf:Description rdf:about="a" xml:lang="en">
>    <rdf:b>foo</rdf:b>
>  </rdf:Description>
> 
> Q17. Does the literal in this RDF/XML fragment have a language tag?
> 
>  <rdf:Description rdf:about="a" xml:lang="en">
>    <rdf:b rdf:datatype="&xsd;string">foo</rdf:b>
>  </rdf:Description>
> 
> For each of the following pairs of statements, if the statement on the left is true, then is the statement on the right true as well in a system that supports datatype inference (specifically, {xsd:string}-Entailment)?
> 
> Q18. { <a> <b> "foo" . } => { <a> <b> "foo"^^xsd:string . }
> 
> Q19. { <a> <b> "foo"^^xsd:string . } => { <a> <b> "foo" . }
> 
> Q20. { <a> <b> "foo" . } => { <a> <b> "foo"@en . }
> 
> Q21. { <a> <b> "foo"@en . } => { <a> <b> "foo" . }
> 
> Q22. { <a> <b> "foo"@en . } => { <a> <b> "foo"@en-GB . }
> 
> Q23. { <a> <b> "foo"@en-GB . } => { <a> <b> "foo"@en . }
> 
> Q24. { <a> <b> "foo"@fr . } => { <a> <b> "foo"@en . }
> 
> 
>

Received on Wednesday, 18 May 2011 18:07:55 UTC