メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.268406417389 43.1006309656626, 141.269009421458 43.1012157788351, 141.269172121791 43.1013590936294, 141.269896665818 43.1019971252756, 141.268033671483 43.1031080479192, 141.267305408944 43.1024146953974, 141.266590023967 43.1017334734628, 141.265472612839 43.1006441222321, 141.266129130754 43.1000530240354, 141.266169928426 43.1000165226264, 141.266427470044 43.0997856632423, 141.266521820333 43.0997010949191, 141.266732696686 43.0995195580821, 141.266998552306 43.0992906691451, 141.267437122523 43.0997073305485, 141.268256518016 43.1004856484096, 141.268406417389 43.1006309656626)) ^^http://www.opengis.net/ont/geosparql#wktLiteral