メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.211760703421 34.7050105438312, 135.211562148505 34.7055889245467, 135.21107360726 34.7054793380875, 135.211056082343 34.7054753797617, 135.210560980267 34.7053662612938, 135.210751712498 34.704821744026, 135.210890463962 34.7045232550721, 135.211020578008 34.7045533060308, 135.211856149083 34.7047461717631, 135.211760703421 34.7050105438312)) ^^http://www.opengis.net/ont/geosparql#wktLiteral