メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.253373501265 36.1414624345131, 137.253344330562 36.141460272794, 137.252681314759 36.1414111115911, 137.25196912178 36.1413541118466, 137.252047142675 36.1406835409388, 137.251725845478 36.1406691334981, 137.251754631176 36.1404491866185, 137.251897909879 36.1404605883928, 137.253438624069 36.1405905863708, 137.253373501265 36.1414624345131)) ^^http://www.opengis.net/ont/geosparql#wktLiteral