メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.744178664176 35.0939637480114, 136.744147856063 35.0941808372629, 136.743997199573 35.0950240999285, 136.736666940709 35.0940263897367, 136.735708554978 35.0939530560283, 136.735765457974 35.093788177459, 136.736311605556 35.0931523994886, 136.736512536274 35.0929560570143, 136.73673189966 35.0927573148632, 136.736934152557 35.0928969836631, 136.737176480554 35.0930089747453, 136.740141426414 35.0934077631423, 136.744178664176 35.0939637480114)) ^^http://www.opengis.net/ont/geosparql#wktLiteral