メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.757134982831 42.9012064358295, 140.755798960513 42.9012710007765, 140.755800848621 42.9012879050195, 140.754968285493 42.9013183121396, 140.754953346295 42.9013189613367, 140.754896046799 42.9004114278273, 140.755131532222 42.9003855287386, 140.755711117047 42.9003323335263, 140.755709832421 42.9003181802097, 140.756941236978 42.9002469741786, 140.75705763273 42.9002402648214, 140.757060339476 42.9002867186186, 140.757134982831 42.9012064358295)) ^^http://www.opengis.net/ont/geosparql#wktLiteral