メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.982960628852 34.6806995564459, 137.983100944519 34.6811611787601, 137.98311736075 34.6812151971173, 137.982420747386 34.681346624565, 137.982252375611 34.681385492576, 137.982195403944 34.6812107276232, 137.98170337687 34.6813269609779, 137.981726302092 34.6814241092696, 137.981254087011 34.6815211275669, 137.981242460409 34.681485299773, 137.981112133477 34.6810844278296, 137.981086010186 34.6810899511423, 137.980893807557 34.6805427454547, 137.982820154381 34.6802293402399, 137.982960628852 34.6806995564459)) ^^http://www.opengis.net/ont/geosparql#wktLiteral