メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.604915043421 35.4273427669432, 139.605773331741 35.4278544429438, 139.606077879059 35.4280267724692, 139.60585737977 35.4282914134815, 139.605719850314 35.4284603031611, 139.605529634538 35.4286939146305, 139.605389391018 35.4286322060454, 139.60484599489 35.4282768186473, 139.604351581892 35.427974235327, 139.603436504523 35.4274212104855, 139.603128667411 35.4272354531859, 139.603564664264 35.4269202458445, 139.603847971167 35.426710304442, 139.604915043421 35.4273427669432)) ^^http://www.opengis.net/ont/geosparql#wktLiteral