メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.772950162218 35.4494552531555, 136.772213035396 35.4495785192725, 136.772201465592 35.4492595117669, 136.772204920382 35.4492216722376, 136.773630186903 35.4490484248925, 136.773668097778 35.4491720301062, 136.774092173899 35.4491129840555, 136.774063951555 35.4489789182215, 136.774384490447 35.4489397813141, 136.774462696476 35.4492369277366, 136.773554501624 35.4493669720339, 136.772950162218 35.4494552531555)) ^^http://www.opengis.net/ont/geosparql#wktLiteral