<HTML><BODY style="word-wrap: break-word; -khtml-nbsp-mode: space; -khtml-line-break: after-white-space; ">Bob,<DIV><BR class="khtml-block-placeholder"></DIV><DIV>SPARQL will handle URIs that aren't HTTP URIs. For example, I can perform SPARQL queries on uBio RDF that has some namespaces and resources identified by LSIDs. </DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>By Semantic web tools I'm thinking more generally, such as data browsers and triple stores, that is, anything that reads RDF and expects to be able to follow any resource in the RDF. If those resources aren't HTTP URIs then these tools won't know how to fetch them. </DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>One case where SPARQL does need HTTRP URIs is the "FROM" statement, where it can fetch data from the web as part of the query. </DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV>Rod</DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR class="khtml-block-placeholder"></DIV><DIV><BR><DIV><DIV>On 9 Jun 2007, at 14:54, Bob Morris wrote:</DIV><BR class="Apple-interchange-newline"><BLOCKQUOTE type="cite"><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">a. To the best of my understanding, nothing in the RDF syntax implies</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">that the URI scheme must be the<SPAN class="Apple-converted-space"> </SPAN>HTTP URI scheme, common as that is.</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><BR></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">b. Some of your arguments here seem to depend on that (e.g. your point 3 ).</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><BR></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">c. My conclusion from a. is that<SPAN class="Apple-converted-space"> </SPAN>any Semantic Web tool, e.g. a SPARQL</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">processor, should usually be deemed broken if it behaves differently</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">on an HTTP URI than it does on any other URI.</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><BR></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">See also <A href="http://copia.ogbuji.net/blog/2007-05-26/linked-data-is-overseling-http">http://copia.ogbuji.net/blog/2007-05-26/linked-data-is-overseling-http</A></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><BR></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Bob</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; min-height: 14px; "><BR></DIV></BLOCKQUOTE></DIV><BR><DIV> <SPAN class="Apple-style-span" style="border-collapse: separate; border-spacing: 0px 0px; color: rgb(0, 0, 0); font-family: Helvetica; font-size: 12px; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; text-align: auto; -khtml-text-decorations-in-effect: none; text-indent: 0px; -apple-text-size-adjust: auto; text-transform: none; orphans: 2; white-space: normal; widows: 2; word-spacing: 0px; "><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">----------------------------------------</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Professor Roderic D. M. Page</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Editor, Systematic Biology</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">DEEB, IBLS</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Graham Kerr Building</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">University of Glasgow</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Glasgow G12 8QP</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">United Kingdom</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal Helvetica; min-height: 14px; "><BR></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Phone: +44 141 330 4778</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Fax: +44 141 330 2792</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">email: <A href="mailto:r.page@bio.gla.ac.uk">r.page@bio.gla.ac.uk</A></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">web: <A href="http://taxonomy.zoology.gla.ac.uk/rod/rod.html">http://taxonomy.zoology.gla.ac.uk/rod/rod.html</A></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">iChat: <A href="aim://rodpage1962">aim://rodpage1962</A></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">reprints: <A href="http://taxonomy.zoology.gla.ac.uk/rod/pubs.html">http://taxonomy.zoology.gla.ac.uk/rod/pubs.html</A></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; font: normal normal normal 12px/normal Helvetica; min-height: 14px; "><BR></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Subscribe to Systematic Biology through the Society of Systematic</DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Biologists Website: <A href="http://systematicbiology.org">http://systematicbiology.org</A></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Search for taxon names: <A href="http://darwin.zoology.gla.ac.uk/~rpage/portal/">http://darwin.zoology.gla.ac.uk/~rpage/portal/</A></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Find out what we know about a species: <A href="http://ispecies.org">http://ispecies.org</A></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Rod's rants on phyloinformatics: <A href="http://iphylo.blogspot.com">http://iphylo.blogspot.com</A></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; ">Rod's rants on ants: <A href="http://semant.blogspot.com">http://semant.blogspot.com</A></DIV><DIV style="margin-top: 0px; margin-right: 0px; margin-bottom: 0px; margin-left: 0px; "><BR class="khtml-block-placeholder"></DIV><BR class="Apple-interchange-newline"></SPAN> </DIV><BR></DIV></BODY></HTML>