メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.013762856375 43.1843747455354, 141.01406199482 43.1845624496952, 141.014289518863 43.1847509974659, 141.015472378834 43.1855673427053, 141.015112055138 43.1858779665772, 141.014770202616 43.186101651346, 141.014514663981 43.1862533352843, 141.013369500956 43.1864925346443, 141.012100354129 43.1867266528927, 141.011350526134 43.186103299516, 141.01070249001 43.185584497705, 141.010685866122 43.1855701114492, 141.010158910936 43.1851140865476, 141.011007547462 43.1845529104974, 141.011903976926 43.1839847896116, 141.012108600312 43.1841314583067, 141.01226386506 43.1841953792217, 141.012792122309 43.1842446950834, 141.013012907851 43.1842669855033, 141.013590081472 43.1843355346063, 141.013762856375 43.1843747455354)) ^^http://www.opengis.net/ont/geosparql#wktLiteral