メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.901589077264 35.0943515604187, 136.901513837126 35.094582317723, 136.900400244492 35.0943568353779, 136.900370387151 35.0941425381129, 136.901407462202 35.0943676402759, 136.901443620229 35.0943209586003, 136.901589077264 35.0943515604187)) ^^http://www.opengis.net/ont/geosparql#wktLiteral