メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.776545868843 38.0521187442117, 140.776055990349 38.0523064450815, 140.775273623673 38.0526239374863, 140.775277448296 38.052543270133, 140.775266443538 38.0524851206968, 140.775050740125 38.0524907817628, 140.775010517506 38.0524879453538, 140.774327841712 38.0515251892833, 140.775187222483 38.0509272992209, 140.776227596082 38.0502327727402, 140.776608780169 38.0508322851995, 140.777242402262 38.0518286523959, 140.776545868843 38.0521187442117)) ^^http://www.opengis.net/ont/geosparql#wktLiteral