メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.997108395857 43.5635581456732, 144.996113887848 43.563608744446, 144.995648449755 43.5633129565361, 144.997153082508 43.562202384064, 144.997267230572 43.5622798365165, 144.997820947967 43.5626157899566, 144.997950550127 43.5626885108998, 144.998122291793 43.5627692888654, 144.997697910967 43.5630995531701, 144.997843454808 43.5631910525178, 144.997681119449 43.5633212843717, 144.997538015586 43.5632238909244, 144.997108395857 43.5635581456732)) ^^http://www.opengis.net/ont/geosparql#wktLiteral