メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.32163215573 38.4220809366633, 141.32185285833 38.4222371166464, 141.322163816653 38.4224635859928, 141.322208023243 38.4224980315352, 141.322252231203 38.4225323356086, 141.322324494467 38.4226011524913, 141.322437688315 38.4228080340075, 141.322552209354 38.4228939893968, 141.322626667716 38.4229827857571, 141.322945330703 38.4233087450749, 141.323083304641 38.4234949705056, 141.322758005782 38.4238072883671, 141.322184602011 38.4243831759166, 141.321265658894 38.4238030906952, 141.320579247494 38.4232874902529, 141.319911945025 38.4227912326791, 141.32086278768 38.4219774337699, 141.321549760593 38.4214137491341, 141.321555253248 38.4216305116673, 141.321553636265 38.4216823216596, 141.321557963591 38.4217467766357, 141.321578588452 38.4218331229496, 141.32165684746 38.4220408552668, 141.32163215573 38.4220809366633)) ^^http://www.opengis.net/ont/geosparql#wktLiteral