メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.662737776535 33.2497999498354, 131.664040050727 33.2499707614066, 131.664843676773 33.2500788364897, 131.665943914332 33.2502292314593, 131.666162523657 33.250835518345, 131.666396772062 33.2512540826706, 131.666485530998 33.2514267858406, 131.666614194293 33.2516595095268, 131.665076695921 33.2514749756019, 131.663810473615 33.2513181811454, 131.66250928307 33.2511323588199, 131.66186236732 33.2510657074023, 131.661333666013 33.2510042576624, 131.66065042268 33.2509064621444, 131.660879909958 33.2495572471466, 131.661568994354 33.2496474569369, 131.662737776535 33.2497999498354)) ^^http://www.opengis.net/ont/geosparql#wktLiteral