メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.381367411318 42.9786239849454, 144.381300461735 42.9785879590929, 144.380113084846 42.9785792880451, 144.38009238935 42.9785791110626, 144.380122476566 42.9781746608047, 144.380158650751 42.9776914007736, 144.380178081575 42.9776993375463, 144.380289246252 42.9777400250384, 144.381376275387 42.9781377881816, 144.381367411318 42.9786239849454)) ^^http://www.opengis.net/ont/geosparql#wktLiteral