メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.34313444658 43.7740678178635, 142.343474507039 43.7739621058569, 142.343816704909 43.774519926734, 142.3426809036 43.7748425554762, 142.342383934652 43.7742874536573, 142.342354731455 43.774296004466, 142.341851158485 43.7740934694666, 142.342200429358 43.7735604456915, 142.342449880002 43.7735665873619, 142.342611731381 43.7735252278694, 142.34282168002 43.7734584595797, 142.34313444658 43.7740678178635)) ^^http://www.opengis.net/ont/geosparql#wktLiteral