メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.757061172674 35.4352684556901, 136.756953202558 35.4356060318972, 136.755042664683 35.4351233456184, 136.755167992497 35.4348000900938, 136.755438040782 35.4341123092639, 136.756059331733 35.4342422856838, 136.75639338559 35.4342680221938, 136.756443875857 35.4342713262993, 136.757442831137 35.4343364437255, 136.757226134282 35.4346858388017, 136.757061172674 35.4352684556901)) ^^http://www.opengis.net/ont/geosparql#wktLiteral