メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.13784333749 35.9725590215535, 136.137698177417 35.9725591900451, 136.137268045975 35.9725596882804, 136.135593244983 35.9725725274049, 136.134999098123 35.9725579187529, 136.1350790811 35.9705732818239, 136.135705348323 35.9705609602536, 136.136378192717 35.9705788989211, 136.136800370325 35.9705809546322, 136.137308147718 35.9705811162575, 136.137820556441 35.970592248192, 136.138033291897 35.970637057846, 136.138065994216 35.9706643472275, 136.137962708517 35.9715753212406, 136.137949330805 35.9716594100582, 136.13784333749 35.9725590215535)) ^^http://www.opengis.net/ont/geosparql#wktLiteral