メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.620585796857 35.4767793742451, 139.620860906696 35.4770730123733, 139.620812666601 35.4771012032101, 139.620613061833 35.4772942706622, 139.620446288788 35.4773923274361, 139.620355712469 35.4774455848204, 139.620205007276 35.4774975412155, 139.619767532929 35.4776251976528, 139.619763741506 35.4776263178273, 139.619227506934 35.4777593295185, 139.61918319219 35.4776030946642, 139.61908141003 35.4774397156014, 139.618930803551 35.4771657265759, 139.618660740547 35.4766742454466, 139.619132414041 35.4766686215194, 139.619281365652 35.4766615211661, 139.619529646689 35.4766362837964, 139.619780712889 35.4765997824469, 139.620114599317 35.4765115595216, 139.62031331272 35.4764371153351, 139.620585796857 35.4767793742451)) ^^http://www.opengis.net/ont/geosparql#wktLiteral