メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.745865392691 35.4206117662397, 136.745898727246 35.4206202625835, 136.745841085008 35.4208448452048, 136.744724318772 35.4206660938152, 136.744477309734 35.4206300197021, 136.744487128298 35.4203884753374, 136.744504909631 35.4201457617478, 136.7459087854 35.4204144576951, 136.745865392691 35.4206117662397)) ^^http://www.opengis.net/ont/geosparql#wktLiteral