メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((145.595819005775 43.3250410126603, 145.595025862293 43.3257937294308, 145.594536897399 43.3262767218471, 145.594242185902 43.3265577649558, 145.593975347748 43.3267641559726, 145.593731106952 43.3269190442273, 145.593618461017 43.3269866119029, 145.593307501196 43.3268528888512, 145.59264921688 43.3265827073385, 145.591987734698 43.3263032620114, 145.592742828591 43.3253340421244, 145.593521400631 43.3243717934896, 145.594308163063 43.3234188621696, 145.596562801943 43.3243233317175, 145.596216898568 43.3246608788474, 145.595819005775 43.3250410126603)) ^^http://www.opengis.net/ont/geosparql#wktLiteral