メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.969117493119 43.543051942211, 144.968379560419 43.5436416519319, 144.968186551417 43.5435115125942, 144.967789545931 43.5431831828432, 144.967632609748 43.5430511312709, 144.968274435795 43.542503970935, 144.968691856507 43.5427790749252, 144.969117493119 43.543051942211)) ^^http://www.opengis.net/ont/geosparql#wktLiteral