メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.854450141508 35.3982654462892, 136.854386397452 35.3987276012932, 136.852735194235 35.39859751284, 136.852687477306 35.3985936560249, 136.852738098486 35.3981240021569, 136.852853188818 35.3973626876582, 136.853269148094 35.397391241553, 136.853870997086 35.3974392225386, 136.854568307034 35.3974940691219, 136.854450141508 35.3982654462892)) ^^http://www.opengis.net/ont/geosparql#wktLiteral