メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.876091962941 35.1284006860859, 136.876090717228 35.1284496292252, 136.876072562483 35.1291689162393, 136.87604747371 35.130006290123, 136.875566044637 35.13000004548, 136.875578630417 35.1298657740735, 136.874486480543 35.1298466240982, 136.874497104523 35.1294457838454, 136.874514267768 35.1290742578032, 136.874520861658 35.1286979164171, 136.874534360648 35.1284458232996, 136.874539297795 35.1283533659286, 136.875595604033 35.1283946155857, 136.876091962941 35.1284006860859)) ^^http://www.opengis.net/ont/geosparql#wktLiteral