メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.366228850492 43.057356519915, 141.366248907713 43.0573756640698, 141.365383453331 43.0572538476912, 141.365030720153 43.0572057585737, 141.364707499954 43.0571730176858, 141.364314863114 43.0571189192798, 141.364241447115 43.0571087862547, 141.363962907141 43.0570703404555, 141.364004055997 43.0569367510142, 141.36405210613 43.0567501153915, 141.364288606452 43.0558306956803, 141.364437034691 43.0557130572787, 141.365410414069 43.0566122969786, 141.365934597008 43.0570763740921, 141.366228850492 43.057356519915)) ^^http://www.opengis.net/ont/geosparql#wktLiteral