メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.384869930207 38.4319976080642, 140.385045735709 38.4323337386898, 140.385144598848 38.4325497784269, 140.385361025253 38.4328066682913, 140.385652505077 38.4331125504871, 140.385407743444 38.4332747720147, 140.385119356676 38.4333854441384, 140.385007455436 38.433413734471, 140.383736772045 38.4335834342498, 140.383645426437 38.4330091582107, 140.383586568963 38.4326394070854, 140.38352978579 38.4321135471936, 140.38352601628 38.4320789033365, 140.383506438346 38.4319804286167, 140.383372975152 38.4311385242172, 140.383331725749 38.4307650391532, 140.38332456103 38.4307001160864, 140.384705882973 38.4305805357832, 140.384899383221 38.4319957501625, 140.384869930207 38.4319976080642)) ^^http://www.opengis.net/ont/geosparql#wktLiteral