メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.354365334381 43.7760865402333, 142.35457806854 43.7764881544992, 142.354744941118 43.7767621265875, 142.355033863217 43.7772989127544, 142.355373563441 43.7779499198211, 142.353707242587 43.7778585818213, 142.353611149607 43.7776827064329, 142.353376368278 43.7773004587441, 142.353148972241 43.7769267381705, 142.352925369254 43.7765133160066, 142.352691391542 43.7760822885094, 142.353336044465 43.7759003716197, 142.354129968149 43.7756781776366, 142.354365334381 43.7760865402333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral