メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.956117950013 34.9112611721469, 136.955975126717 34.9110961198234, 136.956127811128 34.9109988404652, 136.956926942517 34.9118201619057, 136.957124088982 34.9120227742791, 136.957892450133 34.9128221994296, 136.957657927287 34.9128505303119, 136.956687649398 34.9129216065854, 136.955990259367 34.9129728660871, 136.955562373749 34.912998603027, 136.954953467426 34.9130424038311, 136.954903850474 34.9130459799251, 136.954892447733 34.9123691398533, 136.954882862174 34.9122651698048, 136.9548579608 34.9112863752281, 136.955403871295 34.9112740872686, 136.956117950013 34.9112611721469)) ^^http://www.opengis.net/ont/geosparql#wktLiteral