メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.273495842302 38.4449839750478, 141.273436195293 38.4449904613067, 141.27343526597 38.4449875961867, 141.273356621226 38.4450067083368, 141.273344896007 38.4450095578587, 141.273293278529 38.4450196195055, 141.272986742974 38.4450793724994, 141.272519823853 38.4451604046481, 141.272250899769 38.4452091612291, 141.272161598326 38.4452185047742, 141.272002443122 38.445232614215, 141.271875391692 38.4452511081484, 141.271649448028 38.4452990873223, 141.27159131622 38.4453114330337, 141.271575642293 38.4452702472541, 141.271176657759 38.4446873926267, 141.271934625659 38.4445456163951, 141.272226030033 38.4444921590248, 141.272263914374 38.4441275557816, 141.273260490807 38.4441714071176, 141.273295097543 38.4442909310521, 141.273495842302 38.4449839750478)) ^^http://www.opengis.net/ont/geosparql#wktLiteral