メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.939957599066 43.257021348836, 141.939938328249 43.2570895104006, 141.938933934041 43.2567171490864, 141.938394666251 43.2573772109192, 141.938337909233 43.2576061701313, 141.938021580842 43.2575616331852, 141.937789653308 43.2575289297575, 141.937287817131 43.257506666395, 141.937167831318 43.2575013436678, 141.937949536219 43.256504610619, 141.938238715685 43.2561358508989, 141.938642768592 43.2562913871484, 141.938868098538 43.2563775164548, 141.940015553604 43.2568162307703, 141.939957599066 43.257021348836)) ^^http://www.opengis.net/ont/geosparql#wktLiteral