メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.39184475543 43.0484842583737, 141.392001975122 43.0486597854746, 141.392270077965 43.0489502181001, 141.391675404574 43.0493515670864, 141.391574025629 43.0494285929913, 141.391243915655 43.0496720623162, 141.390859019058 43.0499381176582, 141.390363964886 43.0502981493337, 141.389773797283 43.050690941831, 141.389235009835 43.0502748982564, 141.389095200562 43.0501645541473, 141.388971610952 43.0500669908376, 141.388506470143 43.0496998146949, 141.389155913143 43.0493747095819, 141.389487936638 43.0491998148114, 141.389683559409 43.0490967676128, 141.389786846004 43.0490423588318, 141.39047969718 43.0486773436764, 141.391064156071 43.0483925271006, 141.391547249539 43.0481571019041, 141.39184475543 43.0484842583737)) ^^http://www.opengis.net/ont/geosparql#wktLiteral