メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.468701598241 43.0413468244468, 144.468045634767 43.0415975378234, 144.467191933533 43.0410175121083, 144.46778959563 43.0406549188908, 144.468441430261 43.0402527317806, 144.46803317923 43.0396886832493, 144.467784643154 43.0393474954887, 144.46843374076 43.0388006286068, 144.469537329556 43.0378038459489, 144.469564444379 43.0377794781602, 144.46990976177 43.0383635913847, 144.471354116145 43.0403212937135, 144.470834366157 43.0405255628522, 144.470308038747 43.0407283398207, 144.469778720567 43.0409333526541, 144.469027218845 43.0412145496725, 144.468701598241 43.0413468244468)) ^^http://www.opengis.net/ont/geosparql#wktLiteral