メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.736025915444 35.4368137784148, 136.735939852487 35.4370115236399, 136.735862393227 35.43722535534, 136.733226520717 35.4368483851036, 136.733400634122 35.4366144794802, 136.733515101538 35.4364077531663, 136.736025915444 35.4368137784148)) ^^http://www.opengis.net/ont/geosparql#wktLiteral