SPARQL
#仕様
#Semantic_Web
#RDF
#w3c
https://www.w3.org/TR/sparql11-overview/
http://www.asahi-net.or.jp/~ax2s-kmtn/internet/rdf/REC-sparql11-overview-20130321.html
https://www.w3.org/Icons/SW/Buttons/sw-sparql-blue-v.svg