メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.070424069703 38.6527734361647, 141.070350536605 38.652712208217, 141.070345096962 38.6525404770843, 141.069506760959 38.6525182386581, 141.06949501099 38.6521547877464, 141.070349444366 38.6521471510826, 141.070416675449 38.6520138441145, 141.070533609632 38.6519688424179, 141.071718218023 38.6519874132154, 141.071700109554 38.6528195542737, 141.070424069703 38.6527734361647)) ^^http://www.opengis.net/ont/geosparql#wktLiteral