メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.906119299016 43.4937735038793, 141.905356214087 43.4938879529129, 141.905060747436 43.4929078069118, 141.905041529273 43.4928479711167, 141.90506636706 43.4928287766774, 141.905718981934 43.4923247758458, 141.905792635448 43.4925913574302, 141.906119299016 43.4937735038793)) ^^http://www.opengis.net/ont/geosparql#wktLiteral