メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.412205705668 36.8263168270773, 137.412734412241 36.8272779180172, 137.412970388694 36.8277121235275, 137.413196255254 36.828154023325, 137.41208603081 36.828520120692, 137.411892791353 36.8280927219347, 137.411114949277 36.8284491812242, 137.410757716802 36.8286122780754, 137.410455433012 36.8281955211708, 137.410446679458 36.8281834285632, 137.409913723396 36.827353927456, 137.409407875607 36.8265206365828, 137.409126004511 36.8260639873898, 137.410379170824 36.8256861511464, 137.411059192799 36.8255101424198, 137.411695694649 36.8253167594687, 137.41176856352 36.8254620701976, 137.412232892795 36.8263083913401, 137.412205705668 36.8263168270773)) ^^http://www.opengis.net/ont/geosparql#wktLiteral