メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.867553518357 35.1256984989169, 136.867531334372 35.1260691653324, 136.867487108616 35.1264608348023, 136.867225302335 35.1264491254164, 136.867181953253 35.1269934097362, 136.866577688014 35.1269662687669, 136.866522003751 35.1269749334047, 136.866538674649 35.1268057404472, 136.866565734036 35.1264094501881, 136.866592525986 35.1260166091833, 136.866617660115 35.1256485549863, 136.866644040805 35.1252621224009, 136.867576504493 35.125313327494, 136.867553518357 35.1256984989169)) ^^http://www.opengis.net/ont/geosparql#wktLiteral