メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.63899365863 35.0491455876942, 136.639301497447 35.0491298721462, 136.639301066993 35.0497185076891, 136.63930079777 35.0501311449937, 136.638559734207 35.0501678856662, 136.637903997573 35.0501807191704, 136.637179619178 35.0502157431955, 136.636490104012 35.0502350854823, 136.63639956436 35.0484980498665, 136.636701628072 35.0484777231749, 136.636716070942 35.0488622502925, 136.638358102006 35.0488206171925, 136.638990897611 35.048793886285, 136.63899365863 35.0491455876942)) ^^http://www.opengis.net/ont/geosparql#wktLiteral