メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.08000456129 39.383930336325, 141.077352592902 39.3838848460713, 141.077220888244 39.3838958898466, 141.076548903426 39.3840371331778, 141.073234033303 39.3847569184246, 141.072562386838 39.3829936680429, 141.075242598746 39.3822025989393, 141.077985086294 39.3813898727222, 141.078788458966 39.381156786995, 141.079211043073 39.3810752444477, 141.079588666567 39.3810179333003, 141.079753475972 39.3810100540493, 141.080059995458 39.3809953987433, 141.08000456129 39.383930336325)) ^^http://www.opengis.net/ont/geosparql#wktLiteral