メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.780107034539 35.4509964478567, 136.779566371507 35.4510582045246, 136.779574258324 35.4511366082094, 136.778746443365 35.4512278640356, 136.778643431245 35.4507699037182, 136.779910798077 35.4506314280079, 136.780059758943 35.450615143453, 136.780094621201 35.4508206372772, 136.780173390925 35.4508152200027, 136.780180180605 35.4508531288871, 136.78013147923 35.4508605783808, 136.780149701413 35.4509915841244, 136.780107034539 35.4509964478567)) ^^http://www.opengis.net/ont/geosparql#wktLiteral