メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.926835694226 34.886830568456, 136.927504642482 34.8865045971757, 136.927577079744 34.886637151948, 136.927595933234 34.886671559751, 136.927868072097 34.887167441192, 136.927200011177 34.8874367195176, 136.926378586554 34.8877810516114, 136.926208885864 34.8875077214396, 136.925977986199 34.8876041061711, 136.925795914149 34.8873830813987, 136.925564273611 34.8871016688574, 136.925470260089 34.8871447971163, 136.925321822221 34.8870190619878, 136.926447398855 34.8862145054172, 136.926835694226 34.886830568456)) ^^http://www.opengis.net/ont/geosparql#wktLiteral