メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.479385416679 36.9187848430828, 137.478511523711 36.9181591616381, 137.476761654403 36.9169293955742, 137.475577004023 36.9160616858176, 137.477632347002 36.9149397968858, 137.480452163568 36.9134710507951, 137.481948456392 36.9127797925294, 137.482182049482 36.9129750290126, 137.482010953131 36.913897300563, 137.481514124084 36.9165624087855, 137.481400949351 36.9171094356406, 137.481321629545 36.9174663627459, 137.481252840878 36.9175777750415, 137.481143712013 36.9176984473134, 137.481022957177 36.9178007060168, 137.480821540185 36.917930984019, 137.480574073587 36.9180891213322, 137.480202778472 36.9183008763464, 137.47994376042 36.9184544670274, 137.479632812625 36.9186081215126, 137.479385416679 36.9187848430828)) ^^http://www.opengis.net/ont/geosparql#wktLiteral