メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.173979685594 34.6687719473848, 135.174055113407 34.6692176619205, 135.174187760334 34.6699266657124, 135.174283034811 34.6704466192108, 135.174372718477 34.6709530888631, 135.174387518822 34.6710679268435, 135.174058498767 34.6714420658762, 135.173243662237 34.670981170275, 135.173605006573 34.6705662430985, 135.173249419775 34.6693900003946, 135.173116693377 34.6689424270386, 135.172964556776 34.6684634353957, 135.173884254577 34.6682362223082, 135.173979685594 34.6687719473848)) ^^http://www.opengis.net/ont/geosparql#wktLiteral