メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.372956133016 43.1159942360357, 141.372873449485 43.1162781416391, 141.372730492425 43.1167689759899, 141.372605813834 43.1171294261882, 141.371116735962 43.1169200389825, 141.371221435147 43.1165341203956, 141.371498036172 43.1165730240564, 141.371633730561 43.1161005602606, 141.37163181538 43.1161002647171, 141.371712679309 43.1158231675621, 141.371824486661 43.1154164164429, 141.373071023058 43.1155996731215, 141.372956133016 43.1159942360357)) ^^http://www.opengis.net/ont/geosparql#wktLiteral