メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.761902405277 42.9026810022779, 140.761967022713 42.9035069670556, 140.760864792439 42.9035658919029, 140.759711965628 42.9036121903157, 140.759647527856 42.9027798947149, 140.759593239563 42.9020185515402, 140.759516823224 42.9010912832585, 140.760675867017 42.9010351517699, 140.761192888268 42.9010102399876, 140.761765366514 42.900982602972, 140.761801130331 42.9014849577537, 140.761855567471 42.9021021268403, 140.761902405277 42.9026810022779)) ^^http://www.opengis.net/ont/geosparql#wktLiteral