メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.265097246445 44.0182034669183, 144.265081266457 44.0183184624712, 144.265051962019 44.0188337001524, 144.263483822508 44.0186693068744, 144.263259383036 44.018648176424, 144.263487643758 44.018563481838, 144.263508060415 44.018556390761, 144.263573770304 44.0180799067138, 144.263594815425 44.0179590525563, 144.264333062195 44.0180120395296, 144.264762216428 44.0180473194207, 144.264767497729 44.0180076682909, 144.26511159447 44.0180345953122, 144.26509493857 44.0181353907887, 144.265097246445 44.0182034669183)) ^^http://www.opengis.net/ont/geosparql#wktLiteral