メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.978838694251 35.2510743942961, 136.979331921993 35.2515335781619, 136.979776746612 35.2518655012372, 136.979109343301 35.2526802338695, 136.978253252054 35.2537471994956, 136.977645244934 35.2532245588139, 136.97690541463 35.2525825662604, 136.976114979413 35.2518869665161, 136.976456362004 35.2516199379399, 136.976542440641 35.2515607874688, 136.977211806623 35.2510259990242, 136.977220439082 35.2510334074548, 136.977565548716 35.2507661685634, 136.978052340374 35.2503769826346, 136.978838694251 35.2510743942961)) ^^http://www.opengis.net/ont/geosparql#wktLiteral