メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.754935241772 38.6632749011399, 139.756075254697 38.6623415763307, 139.756554215041 38.6620619207593, 139.756922116902 38.6616929859763, 139.757255478452 38.6611180787127, 139.757670165528 38.6601227491314, 139.757852048972 38.6592378917365, 139.757967388491 38.6582103937108, 139.758199525776 38.6577226675705, 139.758493247789 38.6572943451529, 139.758759092772 38.6570617078092, 139.759136719095 38.6568692269634, 139.759626595101 38.6566973392257, 139.760093088466 38.6564078386303, 139.760421097171 38.6561953339596, 139.768709859592 38.6553494811953, 139.78071936959 38.6542490579104, 139.786714832534 38.6637471500329, 139.78203019703 38.6635289588236, 139.772987856676 38.6632962702157, 139.768609668183 38.6630414978721, 139.759072911144 38.6626463853806, 139.754935241772 38.6632749011399)) ^^http://www.opengis.net/ont/geosparql#wktLiteral