メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.074680311747 42.9160537489493, 143.074730549039 42.9156306212424, 143.074735454142 42.9155893715307, 143.074770554812 42.9152940750108, 143.074957131284 42.9153072187668, 143.07648623075 42.9154147652553, 143.076199028872 42.9178678378726, 143.074510874385 42.9177422361033, 143.074572587897 42.917074410697, 143.074229499629 42.9170645043339, 143.074251216494 42.9167697976531, 143.074592308929 42.9167951207882, 143.074636358355 42.9164244349814, 143.074680311747 42.9160537489493)) ^^http://www.opengis.net/ont/geosparql#wktLiteral