W3C Recommendation (E83)

PREFIX p: <http://www.wikidata.org/prop/>
PREFIX ps: <http://www.wikidata.org/prop/statement/>
PREFIX pq: <http://www.wikidata.org/prop/qualifier/>
PREFIX wd: <http://www.wikidata.org/entity/>
PREFIX wdt: <http://www.wikidata.org/prop/direct/>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>

# QUERY MAP: SELECT ?item WHERE { ?item wdt:P31 wd:Q2661442}  LIMIT 10

start = @<#w3c_recommendation>

<#w3c_recommendation> EXTRA p:P31 {
	# instance of
	p:P31 { ps:P31  [wd:Q2661442] } ;

	# subclass of
        p:P279 { ps:P279 IRI }? ;

	# publication date or inception date 
	(  p:P577 { ps:P577 xsd:dateTime } ; p:P571 { ps:P571 xsd:dateTime } ?
	 | p:P571 { ps:P571 xsd:dateTime } ) ;

	# standards body
	p:P1462 { ps:P1462 [wd:Q37033] } ;

	# full work available at
	p:P953 {ps:P953 LITERAL} ? ;



	## Identifiers

	# GND ID
	wdt:P227  . * ;
}