メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.26584809519 44.0250414799765, 144.265581210983 44.0254477384413, 144.265327342458 44.0253470255096, 144.265257713658 44.0251444012615, 144.264400849723 44.0250274127316, 144.264323752481 44.0248343505763, 144.264692200727 44.0247447871938, 144.264621372543 44.0243571997316, 144.264742516042 44.0243777090004, 144.264790101083 44.0243957534968, 144.264857275016 44.0244455228699, 144.264881508042 44.0245394768754, 144.264967501806 44.0246096816983, 144.265084725888 44.0246755697501, 144.265337981193 44.024735266695, 144.265951744524 44.0248622102602, 144.26584809519 44.0250414799765)) ^^http://www.opengis.net/ont/geosparql#wktLiteral