メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.94815980819 34.8858086969886, 136.948043643866 34.8860952035211, 136.947938758132 34.8863907452879, 136.947646732418 34.8871321269567, 136.946472188532 34.8868639088757, 136.945291341011 34.8865629995389, 136.944139067572 34.8862722776462, 136.94486119164 34.8843479887381, 136.945999383456 34.8846149463918, 136.946886082962 34.8848549565243, 136.947200352397 34.884956522752, 136.94745443415 34.8850352318154, 136.948351375262 34.8853373097908, 136.94815980819 34.8858086969886)) ^^http://www.opengis.net/ont/geosparql#wktLiteral