メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.17402332602 34.2361703120274, 135.172526181989 34.2361699354312, 135.172522979834 34.2356716541443, 135.172877354399 34.2356740460371, 135.173836920229 34.2356738973589, 135.174040046066 34.2356806189466, 135.174047984817 34.2359019798838, 135.174089623568 34.2359019782626, 135.174088882351 34.2359781847626, 135.174115455621 34.2359752642125, 135.174106004531 34.2361708691106, 135.17402332602 34.2361703120274)) ^^http://www.opengis.net/ont/geosparql#wktLiteral