メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.430650346732 40.5141797358975, 141.430556473345 40.5141872227181, 141.430386955786 40.514194781844, 141.430165044927 40.5142092633522, 141.429914355673 40.5142272361459, 141.42943040951 40.5142590752693, 141.429403797287 40.5141118088151, 141.429418435433 40.5138293843609, 141.429529432572 40.5126823116038, 141.429603923187 40.5125528178042, 141.43071675303 40.5129657029706, 141.430928832358 40.5131108106888, 141.430951142387 40.5131729262366, 141.43096831756 40.5132692999101, 141.431293942709 40.5133908891515, 141.431469833723 40.5134565662231, 141.430650346732 40.5141797358975)) ^^http://www.opengis.net/ont/geosparql#wktLiteral