メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.895795364059 37.832125720729, 140.895472386901 37.8321491876801, 140.895242075184 37.8320991757296, 140.895053594531 37.8320449839944, 140.894923103146 37.8319438117142, 140.894856723985 37.8318140474342, 140.894835886559 37.8315863083696, 140.895786083792 37.8315777400807, 140.895791982089 37.8317847771837, 140.895795364059 37.832125720729)) ^^http://www.opengis.net/ont/geosparql#wktLiteral