メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.771713594746 43.2006753644292, 141.772160080681 43.2009102200672, 141.771425758279 43.2017013035857, 141.771384340254 43.2016808061713, 141.77068738539 43.2024232262723, 141.770338940113 43.20279232564, 141.770069474141 43.2026504003291, 141.770157308356 43.2025502700413, 141.770018945798 43.2024856902095, 141.769929212824 43.2025765286544, 141.76945476857 43.2023265627887, 141.769476673807 43.2023038680214, 141.770506638499 43.2012368817329, 141.771253125902 43.2004469155975, 141.771713594746 43.2006753644292)) ^^http://www.opengis.net/ont/geosparql#wktLiteral