メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.628810925926 42.8196416174329, 141.628847140616 42.8196553179955, 141.62927758297 42.8198184356626, 141.629093391402 42.8209668157561, 141.628940222396 42.8217453423404, 141.628848389388 42.8222475121122, 141.628831660312 42.8223389246138, 141.628812691259 42.8225252033663, 141.628594042509 42.8224962346149, 141.628426669304 42.8224752800284, 141.628272858172 42.8224643864, 141.628054082861 42.82244807539, 141.627862703851 42.8224343751854, 141.627741413508 42.8224198595225, 141.627573455929 42.8223810366528, 141.627364513131 42.8223132937604, 141.627040499172 42.8222208707061, 141.626811958451 42.8221592102651, 141.626549320993 42.8220822418672, 141.626011641104 42.8218888483323, 141.626484513873 42.8213538735344, 141.626738415879 42.8213207232665, 141.627368732618 42.8202767597996, 141.627381745171 42.8202558716651, 141.627640734564 42.8198392225964, 141.627955712652 42.8193363677169, 141.628329865218 42.819472174997, 141.628575317002 42.8195662066885, 141.628810925926 42.8196416174329)) ^^http://www.opengis.net/ont/geosparql#wktLiteral