メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.718727871591 40.8257580746234, 140.719329677724 40.8257192551249, 140.719567820389 40.8256898621942, 140.719929351241 40.8256539046835, 140.721160832673 40.825275777219, 140.721315366763 40.8252196370559, 140.721854644081 40.8250277882907, 140.723053051674 40.8246178131418, 140.723120993283 40.8248563203261, 140.723125839253 40.8248733512702, 140.723148746203 40.8250674212234, 140.723213911884 40.8254526216446, 140.723233176333 40.825502663386, 140.723260021697 40.8257029275731, 140.723291093655 40.8259662364668, 140.72332500037 40.8261038879026, 140.722032815914 40.8263061517467, 140.721166601997 40.8264577273349, 140.720112873503 40.8266094728427, 140.719634915461 40.8266608688057, 140.719081824621 40.8267041697556, 140.718334552872 40.8268298793736, 140.717100393693 40.8270433374279, 140.717010478154 40.8269818256963, 140.716741092363 40.8267976452396, 140.716506129686 40.8265532003884, 140.716445059406 40.8264044734644, 140.71639838196 40.8260693109724, 140.716374325058 40.8259482018469, 140.716361941251 40.8258857809188, 140.717611221124 40.8258289646835, 140.717662782384 40.8258266231342, 140.718727871591 40.8257580746234)) ^^http://www.opengis.net/ont/geosparql#wktLiteral