メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.992738256747 34.9047734401303, 136.992715662634 34.9048405258766, 136.992438715636 34.904933024794, 136.99187766677 34.9051044883529, 136.991202040862 34.9053045894935, 136.99070886426 34.9041101161046, 136.99217649301 34.9037022662709, 136.991840357355 34.9030617306829, 136.992749659859 34.9028276630128, 136.992753391262 34.9039791713856, 136.992762972106 34.9041029982299, 136.992771283866 34.9042499940468, 136.992772019162 34.904488465026, 136.992738256747 34.9047734401303)) ^^http://www.opengis.net/ont/geosparql#wktLiteral