メタデータ名
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.393968662899 44.1761375304308, 142.393249012984 44.1760234620429, 142.392367551216 44.1758759780036, 142.392612608271 44.175066276259, 142.394223243977 44.1753300816119, 142.393968662899 44.1761375304308)) ^^http://www.opengis.net/ont/geosparql#wktLiteral