メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.262346474943 44.0222670464763, 144.261844484446 44.0221305293525, 144.261325181247 44.0220294824585, 144.260352748758 44.0219340839571, 144.259373117555 44.0218562543281, 144.259176530765 44.021858025213, 144.259309386994 44.0209797411229, 144.260355378084 44.0210148137416, 144.260800180257 44.0210166921626, 144.261164973595 44.0210443118498, 144.261531115284 44.0211059451053, 144.261864713586 44.0211792363355, 144.262617520629 44.0213445494542, 144.262355548223 44.0222299875007, 144.262346474943 44.0222670464763)) ^^http://www.opengis.net/ont/geosparql#wktLiteral