メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.517647840699 34.5656168759325, 136.518167911321 34.5661562882378, 136.518669001543 34.5667232470776, 136.518173301001 34.5670239632212, 136.517686008258 34.5673356290621, 136.516674981616 34.5662425887128, 136.515674867184 34.5652018972869, 136.515943991327 34.5650361006393, 136.516170571242 34.5648949931753, 136.516377078687 34.5647577722094, 136.51649542747 34.5646827586715, 136.5166824372 34.5645659029552, 136.516699825341 34.5645552659314, 136.517639140686 34.5656071935098, 136.517647840699 34.5656168759325)) ^^http://www.opengis.net/ont/geosparql#wktLiteral