メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.87185154616 35.1215787315295, 136.871875291226 35.1218991523103, 136.871911945281 35.122288761211, 136.870802255873 35.1223372135116, 136.870229186281 35.1223674119228, 136.870180133339 35.122001642779, 136.870135859482 35.1217120148089, 136.870073370886 35.1212810691438, 136.871839521673 35.12124073374, 136.87185154616 35.1215787315295)) ^^http://www.opengis.net/ont/geosparql#wktLiteral