メタデータ名
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.274145925097 44.0215103090946, 144.272555405135 44.0213556044701, 144.272686897407 44.0207925206434, 144.274238418843 44.0209413433093, 144.274145925097 44.0215103090946)) ^^http://www.opengis.net/ont/geosparql#wktLiteral