メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.608498000805 35.3555159840025, 136.608451631012 35.3555216139575, 136.607218484973 35.3557301925975, 136.607093058337 35.3552207333385, 136.607838795807 35.3550982776389, 136.607868523961 35.3552312335846, 136.608415981115 35.3551620097813, 136.608480377735 35.3551596327414, 136.608498000805 35.3555159840025)) ^^http://www.opengis.net/ont/geosparql#wktLiteral