メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.345152797919 37.2515651830152, 140.344954612049 37.2516581257455, 140.344773882745 37.251258738974, 140.344463183384 37.2506927805162, 140.345025004595 37.2506400869113, 140.345090656469 37.2506398032731, 140.345703453468 37.2506371540272, 140.346173899799 37.2506618713167, 140.346341764672 37.2506504423507, 140.346510287016 37.2507357449084, 140.346676135352 37.2508226052068, 140.345152797919 37.2515651830152)) ^^http://www.opengis.net/ont/geosparql#wktLiteral