メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.863202977488 35.2350299207848, 136.863143895582 35.2358459244621, 136.862113465211 35.2357938901286, 136.862193686978 35.2349797015385, 136.862231433559 35.2344992887459, 136.862430102705 35.2345136628982, 136.862428324157 35.2344216839457, 136.863257938594 35.2344663097165, 136.863202977488 35.2350299207848)) ^^http://www.opengis.net/ont/geosparql#wktLiteral