メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.323885999732 43.7669366475567, 142.323213735626 43.7680196462111, 142.322968607684 43.7683932639549, 142.32194553199 43.7683057135741, 142.321965551209 43.7682762338466, 142.322145740241 43.7679752418723, 142.322285567834 43.7677402780167, 142.322285721535 43.7677400159856, 142.322153412573 43.7677001482497, 142.32239860484 43.7673037141927, 142.322606212682 43.7669633132847, 142.322827687381 43.7666214620887, 142.323414313545 43.7667933741146, 142.323885999732 43.7669366475567)) ^^http://www.opengis.net/ont/geosparql#wktLiteral