メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.277474884988 35.9229351765117, 136.276507316552 35.9244862850299, 136.271732441531 35.9227722390941, 136.271190016696 35.9225896478279, 136.270650491984 35.9217594664614, 136.269260363488 35.9198612914211, 136.268106053917 35.9182727822303, 136.270734705704 35.9168360441992, 136.271532373503 35.9179143980723, 136.27352597174 35.9203387810613, 136.274694289243 35.9216765650446, 136.275045045386 35.9220690891338, 136.277474884988 35.9229351765117)) ^^http://www.opengis.net/ont/geosparql#wktLiteral