メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.788144961669 35.1539812075526, 136.787994563344 35.1540360904256, 136.787868091238 35.1540990769351, 136.787492690173 35.1542736102474, 136.787229457875 35.1543164485528, 136.786938435346 35.1543246917463, 136.786910182943 35.1531880321084, 136.786886628873 35.1523230835, 136.788266902086 35.1528124839331, 136.788273148582 35.1527691927568, 136.788513795523 35.1528702981851, 136.789000447377 35.1532376684315, 136.788825990017 35.1533864928527, 136.788690506448 35.1535164240919, 136.788492638692 35.1537202467095, 136.788240439429 35.1539264342165, 136.788144961669 35.1539812075526)) ^^http://www.opengis.net/ont/geosparql#wktLiteral