メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.269705193478 34.8116640558092, 137.269664544758 34.8119458169441, 137.269542108554 34.8123854109494, 137.269487606147 34.8125094147834, 137.269474119279 34.8126559246771, 137.269474241125 34.812757347151, 137.269501824295 34.8129714396813, 137.268681979199 34.8129157382783, 137.268544106371 34.8118678089288, 137.269705193478 34.8116640558092)) ^^http://www.opengis.net/ont/geosparql#wktLiteral