メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.550741752699 43.2500889921858, 143.550250637661 43.250122930126, 143.549138440954 43.250173429056, 143.546971821342 43.2502543275653, 143.54695913699 43.2501327317158, 143.546948139262 43.2500272215856, 143.546877999909 43.2493523631386, 143.546854044922 43.2491215324158, 143.54682327973 43.2488054699589, 143.546799112004 43.2485554417922, 143.550580106415 43.2483951896793, 143.550734679941 43.2499738025795, 143.550741752699 43.2500889921858)) ^^http://www.opengis.net/ont/geosparql#wktLiteral