メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.935719673319 35.4890215245036, 136.93558270525 35.4894832930524, 136.935416843321 35.4899768717064, 136.934073606173 35.4897033048081, 136.934220740162 35.4891981766563, 136.934306468444 35.4888401810376, 136.934404122354 35.4883469981031, 136.934437354912 35.4883548093425, 136.93482017616 35.48844466407, 136.93556631648 35.4886178934652, 136.935812259571 35.4886713228064, 136.935719673319 35.4890215245036)) ^^http://www.opengis.net/ont/geosparql#wktLiteral