メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.925361904594 43.5861390808637, 141.924493977477 43.5863569514984, 141.922590358137 43.5868405107036, 141.92199365544 43.58557672843, 141.923167698526 43.5852921332224, 141.924903506512 43.5848564099254, 141.925040195231 43.585150549527, 141.925150509738 43.5854021359522, 141.925175927243 43.5856186701973, 141.925206977309 43.5857772377371, 141.925361904594 43.5861390808637)) ^^http://www.opengis.net/ont/geosparql#wktLiteral