メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.613530229517 33.2425733794567, 131.613914027838 33.2426101759214, 131.614213996193 33.2426415390216, 131.614224816947 33.2426424377317, 131.615593413378 33.2427567603257, 131.615529265355 33.2433931578079, 131.61543491494 33.2440740871187, 131.613365483571 33.2438767291724, 131.611917588591 33.2437355951306, 131.612004635519 33.2430737642999, 131.612085408369 33.2424377656974, 131.612657195235 33.2424914410999, 131.61267238276 33.242492866646, 131.613105302472 33.2425353240635, 131.613530229517 33.2425733794567)) ^^http://www.opengis.net/ont/geosparql#wktLiteral