メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.250000577654 34.8240301141297, 137.249754675496 34.8241204404026, 137.249371445081 34.8235234300271, 137.248810649404 34.8230166963601, 137.248509706406 34.8227126308345, 137.248181218255 34.8221831966374, 137.248085632804 34.8222621475286, 137.248017593954 34.8225664664561, 137.247853903856 34.8228821198483, 137.247703664303 34.8229723768845, 137.247292928873 34.8221725317052, 137.248426544038 34.8214955967738, 137.249341666873 34.8209991124185, 137.25048898357 34.8203897614674, 137.250612461031 34.8208855272767, 137.250777147889 34.8215953823231, 137.250928360572 34.8224968265176, 137.251010600683 34.8227446949126, 137.251079075049 34.8228911485221, 137.251421304873 34.8234769142925, 137.250000577654 34.8240301141297)) ^^http://www.opengis.net/ont/geosparql#wktLiteral