メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.997820947967 43.5626157899566, 144.997267230572 43.5622798365165, 144.997153082508 43.562202384064, 144.996897644146 43.5619823115775, 144.996807859175 43.5618792390408, 144.996754024082 43.5618266702827, 144.99793835578 43.560882249045, 144.997959220095 43.5608945102028, 144.998014712564 43.5609282286991, 144.998642930217 43.5613502495474, 144.999026768469 43.5616081519172, 144.999184637706 43.5617155615207, 144.99886639678 43.5619427550389, 144.998733144056 43.5618535633497, 144.997820947967 43.5626157899566)) ^^http://www.opengis.net/ont/geosparql#wktLiteral