メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.447655037352 36.4016481035431, 136.447040075496 36.4016097523538, 136.446965473234 36.4016184163149, 136.446966288325 36.4014490743876, 136.447048283872 36.4014498723623, 136.447089915176 36.4006388947591, 136.447172304992 36.4005732907168, 136.44703140009 36.4002261597279, 136.447713273439 36.4000531102404, 136.447852488473 36.4004280748344, 136.447660261001 36.4004755174725, 136.447721961952 36.4007365573989, 136.447717157114 36.4007948918493, 136.447691091811 36.4013222557303, 136.447655037352 36.4016481035431)) ^^http://www.opengis.net/ont/geosparql#wktLiteral