メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.441270397759 43.0473119579192, 141.440653528281 43.0474135165949, 141.44036133627 43.0474651126032, 141.440269062182 43.0474816211505, 141.439946152467 43.0475356013973, 141.439832138406 43.0475573004386, 141.439318419722 43.0476462897373, 141.438932444465 43.0477122688889, 141.438928138338 43.0469760888458, 141.439354963785 43.0469024515591, 141.43961785062 43.0468551518068, 141.440045173475 43.0467799679196, 141.440422759695 43.0467097052029, 141.440882380421 43.0466139286472, 141.440745577677 43.045801206547, 141.441389851741 43.0457144691544, 141.441312587305 43.0464357963778, 141.441270397759 43.0473119579192)) ^^http://www.opengis.net/ont/geosparql#wktLiteral