メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.314480549172 43.0614293126269, 141.314433401091 43.0616282399751, 141.314381744687 43.0618461185667, 141.313758638668 43.0617604941671, 141.313166121738 43.061681869311, 141.312968182237 43.0616547193708, 141.31247313547 43.0615874386872, 141.312391871383 43.0615763636532, 141.312547044215 43.0608917171359, 141.312668891315 43.0603670067539, 141.312742894319 43.0600865779553, 141.31320289642 43.0601492810545, 141.313198313989 43.0601856741708, 141.313390966309 43.0602069434733, 141.313559453389 43.0602279435602, 141.314749862328 43.0603772128671, 141.314702729507 43.0605373892339, 141.314678582292 43.0606556956191, 141.314534761702 43.0612135649682, 141.314480549172 43.0614293126269)) ^^http://www.opengis.net/ont/geosparql#wktLiteral