メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.179440272058 34.2300119560594, 135.17973258765 34.2300635004975, 135.179193388301 34.2306640772626, 135.178917822708 34.2310810353977, 135.178743398488 34.2313516033599, 135.178351750408 34.2312854451968, 135.17750737349 34.2312607604033, 135.178264664168 34.229971249746, 135.179085629097 34.2299867578737, 135.179440272058 34.2300119560594)) ^^http://www.opengis.net/ont/geosparql#wktLiteral