メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.25853023698 44.0274866366517, 144.258603378421 44.0276439027986, 144.257634507486 44.0281412871196, 144.257509817095 44.0282005922606, 144.257221995824 44.0281044350018, 144.257049100315 44.0279020914673, 144.256989512971 44.0278321116383, 144.256796214424 44.027605101792, 144.256446935089 44.0271951799126, 144.256494238424 44.0271934367633, 144.256832299893 44.0271786495061, 144.257047658544 44.027201283459, 144.257220629321 44.0272095708614, 144.25741899607 44.027202298928, 144.257687283072 44.0271703509036, 144.258295082579 44.0270339786151, 144.25853023698 44.0274866366517)) ^^http://www.opengis.net/ont/geosparql#wktLiteral