メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.598481722085 42.8893775983735, 141.599223281664 42.8904431803176, 141.599804860157 42.8912787821436, 141.596578157939 42.8924429477691, 141.596002316241 42.8916236095805, 141.595987285461 42.8916022133413, 141.595739538525 42.8912497059436, 141.59528786169 42.890566883432, 141.59526346684 42.8905310864971, 141.594595941392 42.8895524102092, 141.596650889222 42.8887857370145, 141.59663996744 42.888769357909, 141.597225708193 42.8885587528372, 141.597786533463 42.8883570762094, 141.598481722085 42.8893775983735)) ^^http://www.opengis.net/ont/geosparql#wktLiteral