メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.391485498721 43.0959168443085, 141.39102012084 43.0961037950944, 141.390614476224 43.0962671399884, 141.390235635827 43.0964145105117, 141.389701703167 43.0964524818562, 141.389123728845 43.0964966590935, 141.38856759574 43.0965504920259, 141.387984202937 43.0966728264044, 141.387983160595 43.0966514393684, 141.387958873973 43.0964673530942, 141.387955346503 43.0958163866198, 141.38851332974 43.0958354281493, 141.389053658781 43.0955873760372, 141.38982492556 43.0952333887386, 141.389947886264 43.0951767153852, 141.389956772842 43.0951725630636, 141.390226746462 43.0950480751787, 141.390678942807 43.0948698899124, 141.391485498721 43.0959168443085)) ^^http://www.opengis.net/ont/geosparql#wktLiteral