メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.554292368003 43.238279345653, 143.553065572225 43.2383315471404, 143.552267888963 43.2383654773976, 143.552263372422 43.2382843692156, 143.552143218638 43.2367540397969, 143.552615103565 43.2367346594335, 143.552685451398 43.2367317464169, 143.55292889256 43.2367217937614, 143.55329919007 43.2367065949579, 143.554154540639 43.2366714356075, 143.554292368003 43.238279345653)) ^^http://www.opengis.net/ont/geosparql#wktLiteral