メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.892248058145 37.0574652093324, 140.891289823472 37.0573752114331, 140.891341942465 37.0570424690275, 140.891420732362 37.0563980500462, 140.891436451404 37.0561703843898, 140.891486153276 37.0557838792823, 140.891642141662 37.0550064224631, 140.891716858679 37.0545809056574, 140.89273385296 37.0546923411127, 140.892555334186 37.0557372285913, 140.89252625639 37.0559072879311, 140.892265456655 37.0574340779972, 140.892248058145 37.0574652093324)) ^^http://www.opengis.net/ont/geosparql#wktLiteral