メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.550580106415 43.2483951896793, 143.546799112004 43.2485554417922, 143.546791458906 43.2484759864308, 143.546645383503 43.2469706953401, 143.546711706846 43.2469679029879, 143.546698176893 43.2469288828124, 143.547292968476 43.2469261336525, 143.547244787859 43.2463157988926, 143.547811817288 43.2462926862357, 143.548970286399 43.2462453996158, 143.550184504269 43.246195849491, 143.550209792605 43.2467598146571, 143.550791128045 43.2467442607985, 143.550869091284 43.2483035630922, 143.550872414922 43.2483827858212, 143.550580106415 43.2483951896793)) ^^http://www.opengis.net/ont/geosparql#wktLiteral