メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.405527064506 43.0042158805778, 144.405541658987 43.0042277018215, 144.406046300113 43.004552188726, 144.406587746015 43.0048877239023, 144.405495907853 43.0058058218874, 144.404930581523 43.0054615176124, 144.404437324206 43.0051502444921, 144.403940280484 43.0048237089049, 144.404462808311 43.0043723525703, 144.405042820802 43.0039045804937, 144.405527064506 43.0042158805778)) ^^http://www.opengis.net/ont/geosparql#wktLiteral