メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.607981120702 35.3835216197971, 136.607920733651 35.3845322271901, 136.607901400262 35.3856563292563, 136.607061531352 35.3856387842851, 136.605878380298 35.3856041492503, 136.605921592801 35.3844937542544, 136.605958025295 35.3835121956111, 136.605959344759 35.3834767802776, 136.605987561696 35.3824518756502, 136.608014882193 35.3824938484909, 136.607981120702 35.3835216197971)) ^^http://www.opengis.net/ont/geosparql#wktLiteral