メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.387678419074 44.1709654421736, 142.387675879614 44.1709553898049, 142.387044797505 44.171049207099, 142.386503045787 44.1711278678572, 142.386142847723 44.1710598418959, 142.386224215926 44.1708115969495, 142.386390817481 44.1702246413919, 142.386510466496 44.1698030921132, 142.386683713048 44.1691927465564, 142.387147510542 44.1691491792981, 142.387610094246 44.1690873279014, 142.388064396066 44.1700011293363, 142.388082377176 44.1700553234404, 142.38835153379 44.1708666133506, 142.387678419074 44.1709654421736)) ^^http://www.opengis.net/ont/geosparql#wktLiteral