メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.60894833696 33.2422172470019, 131.609104981303 33.2422236516972, 131.609762289376 33.2422505413381, 131.61043417335 33.2422689483293, 131.611334604049 33.2423491078273, 131.612085408369 33.2424377656974, 131.612004635519 33.2430737642999, 131.611917588591 33.2437355951306, 131.610257785607 33.2435678013538, 131.609885771836 33.2435261231238, 131.608852107767 33.2434066366779, 131.607178074345 33.2432372995695, 131.607226705765 33.2428033248156, 131.607232540938 33.2427321116276, 131.607255853127 33.2424487324116, 131.60727761618 33.242183995523, 131.60894833696 33.2422172470019)) ^^http://www.opengis.net/ont/geosparql#wktLiteral