メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.841469468991 35.8851271397326, 139.841424840597 35.8856936921858, 139.840343864466 35.8856510967971, 139.840325909629 35.8850681238083, 139.84031098962 35.884770214646, 139.840295478881 35.8847111353096, 139.840314087863 35.8844434616837, 139.840655293444 35.8844931933904, 139.840653536259 35.8845407427677, 139.840961892026 35.8845958446421, 139.841504586848 35.8846066399407, 139.841487431895 35.8848630568719, 139.841469468991 35.8851271397326)) ^^http://www.opengis.net/ont/geosparql#wktLiteral