メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.821646160322 35.5228156589454, 137.821915756414 35.5228376310775, 137.821058059722 35.5239670005407, 137.820869885864 35.5241925484912, 137.820667985733 35.5244266439592, 137.820369489927 35.5247976878261, 137.820216811959 35.5249454107494, 137.820166186386 35.5249885032377, 137.819973531157 35.5251525837453, 137.819064112406 35.524775468034, 137.818872113662 35.5244945066298, 137.818870656989 35.5244374939063, 137.818860488948 35.5240352772787, 137.818851214971 35.523756544336, 137.818839497369 35.5235427214085, 137.818820489419 35.5232947409447, 137.818799351754 35.5230184052685, 137.81880613533 35.5228883453274, 137.818808601693 35.5228411083236, 137.818825041357 35.5227303631054, 137.818921597911 35.5224604661239, 137.81997487013 35.5225629874885, 137.820992897752 35.5227135732748, 137.821324145475 35.5227687094528, 137.821646160322 35.5228156589454)) ^^http://www.opengis.net/ont/geosparql#wktLiteral