メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.688748063583 35.417868925078, 136.68933903537 35.4178786791729, 136.689331477938 35.4193144791279, 136.688816882838 35.4193055895116, 136.68843393221 35.4193067566097, 136.688432972404 35.4190977814257, 136.688046750179 35.4191069630026, 136.688045854565 35.4188872842664, 136.687583943936 35.4188795815378, 136.687585068289 35.4189587033191, 136.687339595347 35.4189586139893, 136.687400493414 35.4183273281858, 136.686948611806 35.4183262833615, 136.686948947766 35.4179645374891, 136.686950586516 35.417840253301, 136.687481505665 35.4178512925696, 136.688748063583 35.417868925078)) ^^http://www.opengis.net/ont/geosparql#wktLiteral