メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.346524177265 43.058783834011, 141.347617030285 43.0589443730692, 141.34737913645 43.0598881491875, 141.347227793194 43.0605478430411, 141.347214572678 43.0606056201217, 141.347167192072 43.0607885956825, 141.345629589562 43.0605734746908, 141.345837850738 43.059696704713, 141.346013642266 43.0589732765031, 141.346075610109 43.0587179779513, 141.346524177265 43.058783834011)) ^^http://www.opengis.net/ont/geosparql#wktLiteral