メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.787650820281 42.9098151826686, 140.789614751582 42.9097246402016, 140.793039022505 42.9095890890526, 140.794423102104 42.9095282139506, 140.794606707491 42.9116350570072, 140.794770970764 42.9135476006649, 140.805167877105 42.9133177414696, 140.80834243862 42.9132076369624, 140.80876482909 42.91846477022, 140.80898531656 42.9199873030416, 140.809113655827 42.9213827140454, 140.80920150371 42.9220684801404, 140.80926848392 42.9229311443691, 140.809293087053 42.9236739959633, 140.809275599906 42.9246379262015, 140.809515417624 42.9288266955279, 140.803525760002 42.9290665146801, 140.796169803383 42.9294868573282, 140.775731899993 42.9305220330343, 140.77535579464 42.9265458290863, 140.774859790972 42.9205974307856, 140.774731703732 42.9181532755574, 140.774425208469 42.9147929503225, 140.773958724943 42.9104280707633, 140.77756966394 42.9102975705986, 140.780846047203 42.9101567535306, 140.785799264615 42.9098953128533, 140.787650820281 42.9098151826686)) ^^http://www.opengis.net/ont/geosparql#wktLiteral