メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.955591150232 35.230750325754, 136.956265788842 35.2311283521229, 136.956189762174 35.2317171812369, 136.95578778096 35.231654665801, 136.955299565505 35.23154059683, 136.954569603717 35.2313376650919, 136.954702389465 35.2308510363947, 136.954416767691 35.2307511148283, 136.954341360566 35.2307284510073, 136.954183703394 35.2306737456188, 136.953909859475 35.2304444173714, 136.95471309996 35.2302487842433, 136.954765586906 35.2302805267335, 136.955159509349 35.2305187571706, 136.955591150232 35.230750325754)) ^^http://www.opengis.net/ont/geosparql#wktLiteral