メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.988109577623 36.7378716448456, 136.987958628089 36.7378714173812, 136.986647344769 36.7381364203728, 136.986024012518 36.7362353702612, 136.986608259482 36.7361225518692, 136.986775699024 36.7363317051811, 136.98758071356 36.7359263871236, 136.988847793866 36.7375297263775, 136.989105031631 36.7378625074871, 136.989013983229 36.737912289693, 136.988751971022 36.7375967505834, 136.988739189665 36.7376006048456, 136.988321882629 36.7377648723293, 136.988109577623 36.7378716448456)) ^^http://www.opengis.net/ont/geosparql#wktLiteral