メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.468870016402 43.0363512529819, 144.468887997961 43.0363819883458, 144.469071110472 43.0368125637184, 144.469205353845 43.0371109579077, 144.469219439414 43.0371612488619, 144.468236827721 43.0373811004615, 144.467025318075 43.0376661447419, 144.466861810386 43.037332308036, 144.466667910301 43.0368998994449, 144.466490066924 43.0365406002023, 144.46646627372 43.0364815645619, 144.46654675363 43.0364641809214, 144.46764044073 43.0361930311829, 144.468698626206 43.0359531517606, 144.468870016402 43.0363512529819)) ^^http://www.opengis.net/ont/geosparql#wktLiteral