メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.410169213729 34.7558282507578, 137.409767832517 34.7563907915939, 137.409632968533 34.7566062899305, 137.408864459533 34.7577359496155, 137.40875690702 34.7579095587021, 137.408259192391 34.7576106877243, 137.407841666956 34.757345176787, 137.408592359661 34.7563368364474, 137.408886376384 34.7559545248404, 137.409359967666 34.7553340844871, 137.409495352771 34.754705879026, 137.410030792729 34.7548180405241, 137.410121482617 34.7545620645814, 137.410883674071 34.7549133567303, 137.410748685475 34.7550702619363, 137.410169213729 34.7558282507578)) ^^http://www.opengis.net/ont/geosparql#wktLiteral