4.1 RDF/XML Service Description

```bash

Given the HTTP request:

GET /sparql/ HTTP/1.1 Host: www.example

the SPARQL service responds with an RDF/XML encoded

service description (no content negotiation or RDFa

encoding is used):

HTTP/1.1 200 OK Date: Fri, 09 Oct 2009 17:31:12 GMT Server: Apache/1.3.29 (Unix) PHP/4.3.4 DAV/1.0.3 Connection: close Content-Type: application/rdf+xml

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:sd="http://www.w3.org/ns/sparql-service-description#" xmlns:prof="http://www.w3.org/ns/owl-profile/" xmlns:void="http://rdfs.org/ns/void#"> <sd:Service> <sd:endpoint rdf:resource="http://www.example/sparql/"/> <sd:supportedLanguage rdf:resource="http://www.w3.org/ns/sparql-service-description#SPARQL11Query"/> <sd:resultFormat rdf:resource="http://www.w3.org/ns/formats/RDF_XML"/> <sd:resultFormat rdf:resource="http://www.w3.org/ns/formats/Turtle"/> <sd:feature rdf:resource="http://www.w3.org/ns/sparql-service-description#DereferencesURIs"/> <sd:defaultEntailmentRegime rdf:resource="http://www.w3.org/ns/entailment/RDFS"/> <sd:extensionFunction> <sd:Function rdf:about="http://example.org/Distance"/> </sd:extensionFunction> <sd:defaultDataset> <sd:Dataset> <sd:defaultGraph> <sd:Graph> <void:triples rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">100</void:triples> </sd:Graph> </sd:defaultGraph> <sd:namedGraph> <sd:NamedGraph> <sd:name rdf:resource="http://www.example/named-graph"/> <sd:entailmentRegime rdf:resource="http://www.w3.org/ns/entailment/OWL-RDF-Based"/> <sd:supportedEntailmentProfile rdf:resource="http://www.w3.org/ns/owl-profile/RL"/> <sd:graph> <sd:Graph> <void:triples rdf:datatype="http://www.w3.org/2001/XMLSchema#integer">2000</void:triples> </sd:Graph> </sd:graph> </sd:NamedGraph> </sd:namedGraph> </sd:Dataset> </sd:defaultDataset> </sd:Service> </rdf:RDF> ```