メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.184456399669 35.0883881944451, 137.183952551118 35.0881406640311, 137.182531695464 35.0874423399709, 137.182332386173 35.0862545879158, 137.18232537424 35.0862127559741, 137.183318611672 35.0861551442477, 137.183374989226 35.0861517553805, 137.184359024698 35.0860484311586, 137.184878860035 35.0859954634032, 137.184969341527 35.0866653986856, 137.185014105008 35.0868605383871, 137.18517585008 35.0871009430313, 137.185440833019 35.0873667540389, 137.185645575811 35.0875689111845, 137.184456399669 35.0883881944451)) ^^http://www.opengis.net/ont/geosparql#wktLiteral