メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.379085917947 43.0008667151102, 144.37990773188 43.0010086607966, 144.379804678929 43.0013313491765, 144.379770960837 43.0014323232472, 144.379686342647 43.0016857176906, 144.379596995892 43.0019532649284, 144.379552456174 43.0019453743651, 144.378772552857 43.001807708938, 144.378061098095 43.0016820565252, 144.378372459754 43.0007382891523, 144.379085917947 43.0008667151102)) ^^http://www.opengis.net/ont/geosparql#wktLiteral