メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.430380242494 31.9078956594232, 131.43098103567 31.9078755466325, 131.431181530944 31.9078712126023, 131.431511420808 31.9085400282424, 131.431565915948 31.908677380477, 131.43177891995 31.9091849523029, 131.431882286075 31.9094839122742, 131.431985786646 31.9098731994736, 131.432095608712 31.9103245375751, 131.432194838876 31.9107721066625, 131.432225915354 31.9109350419616, 131.432229577213 31.9110644605779, 131.431340917224 31.9108616377337, 131.430074862492 31.9107519481572, 131.42934158245 31.9106806283458, 131.429085105669 31.9096926621972, 131.428890508476 31.9089554625297, 131.428848957446 31.9088301127145, 131.428649209241 31.9079699769599, 131.429450215226 31.9079285619465, 131.429551842811 31.9079165976401, 131.430322598288 31.9078983877169, 131.430380242494 31.9078956594232)) ^^http://www.opengis.net/ont/geosparql#wktLiteral