メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((131.617395897425 33.2429305542777, 131.617727530872 33.2429702405897, 131.617895528262 33.2429453473184, 131.618114091738 33.2429643558269, 131.620962081608 33.2432265535058, 131.620905413365 33.2433882270029, 131.620494340813 33.2445609716512, 131.619830183522 33.2464555258147, 131.619657183043 33.2469888265043, 131.619232017222 33.2469375102213, 131.618097120998 33.2467799144287, 131.61830995143 33.2460802852934, 131.618480096322 33.2455219223973, 131.618638574153 33.2449735127414, 131.618808688791 33.244411204729, 131.617217172501 33.2442530400786, 131.61543491494 33.2440740871187, 131.615529265355 33.2433931578079, 131.615593413378 33.2427567603257, 131.616361939747 33.2428308635466, 131.617395897425 33.2429305542777)) ^^http://www.opengis.net/ont/geosparql#wktLiteral