メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.870541704092 35.160479799738, 136.870631053856 35.1609915874807, 136.870690015156 35.1612692780279, 136.870402160357 35.1613027998484, 136.869394255602 35.1614128684647, 136.869443573174 35.1611210772544, 136.86950770572 35.1605809325297, 136.869551670231 35.1602872971958, 136.869590933894 35.1600249186226, 136.870423354925 35.1599423057949, 136.870489892693 35.1601994511717, 136.870541704092 35.160479799738)) ^^http://www.opengis.net/ont/geosparql#wktLiteral