メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.877125010918 39.2727307383117, 141.87765243455 39.2727815958481, 141.878226695887 39.2728159859505, 141.878641540011 39.2728640514969, 141.879061335063 39.272977026328, 141.878939793701 39.2733882625137, 141.878712389243 39.273323662757, 141.878120794562 39.2731710620633, 141.877998009813 39.2731520383506, 141.877622421824 39.2731989747877, 141.877463030828 39.2732206042647, 141.877094865045 39.2732552980963, 141.877023830325 39.2732640286666, 141.876499018398 39.2733284173153, 141.876237734487 39.2733843878876, 141.876066004268 39.2734287864578, 141.875951212657 39.2734723218428, 141.875186323486 39.2736858695748, 141.875008387742 39.2733607166078, 141.875625709426 39.2729101347857, 141.876211103833 39.2726575183206, 141.877125010918 39.2727307383117)) ^^http://www.opengis.net/ont/geosparql#wktLiteral