メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.365581125681 43.7439013097094, 142.36627877034 43.744108293568, 142.365600912401 43.745297294445, 142.364887639643 43.7465325445897, 142.364178449142 43.746335407762, 142.364068599135 43.746304875191, 142.363493774146 43.7461366606708, 142.364211877674 43.7448905673508, 142.364803312378 43.7438332693665, 142.364888060068 43.7436957050425, 142.365562576321 43.743895825241, 142.365581125681 43.7439013097094)) ^^http://www.opengis.net/ont/geosparql#wktLiteral