メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.863197183431 35.4019293816298, 136.86477098423 35.4020311852654, 136.864750451089 35.4022446520304, 136.864684478514 35.4027371560328, 136.863129820263 35.4026244133747, 136.86309123305 35.4026215687394, 136.862425328013 35.4025720578427, 136.862359223324 35.4020628811304, 136.862336162775 35.4018705714242, 136.862720099264 35.4018277465256, 136.862713416088 35.4018955461654, 136.863197183431 35.4019293816298)) ^^http://www.opengis.net/ont/geosparql#wktLiteral