メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.535085021627 37.6564498772417, 140.535079769865 37.6564751108608, 140.534891163858 37.6568353853784, 140.533651965005 37.6565689051248, 140.533204556157 37.6564323179737, 140.532965651305 37.6562895655169, 140.53325252156 37.6561429931249, 140.533419330289 37.6560766782581, 140.533608054794 37.6560338857471, 140.533665039377 37.6562085498314, 140.533695084923 37.6562446947989, 140.533738536862 37.6562516166787, 140.534070064469 37.6562823131319, 140.534383458426 37.6563240977044, 140.535085021627 37.6564498772417)) ^^http://www.opengis.net/ont/geosparql#wktLiteral