メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((138.8204985315 37.4389235335637, 138.820777744851 37.4390943925054, 138.821193267785 37.4393227446386, 138.820729275071 37.439604203633, 138.820350511647 37.4398374160769, 138.819959055556 37.4400605263925, 138.819542367656 37.4403039750113, 138.819138386563 37.4405624548354, 138.819129997696 37.4405676860651, 138.818745159894 37.440812736017, 138.818336579199 37.4410389823105, 138.81825670106 37.4409593700361, 138.817917102567 37.440621265216, 138.817747662464 37.4404320788012, 138.817579716943 37.4401733356501, 138.817433900698 37.4399172065268, 138.816993499984 37.4390796980185, 138.818168154418 37.4386714310823, 138.818388342587 37.4385801557145, 138.818682048506 37.4384888217892, 138.818895820304 37.4384616253292, 138.819136497977 37.4384768758677, 138.819290441393 37.4385298156887, 138.819464336371 37.4385559473993, 138.819577480556 37.4384437049921, 138.819723860169 37.4383250355716, 138.820092298771 37.4386420784045, 138.8204985315 37.4389235335637)) ^^http://www.opengis.net/ont/geosparql#wktLiteral