メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((130.707007968378 32.7969397374903, 130.706086779839 32.7966534079616, 130.705567513178 32.79647344198, 130.70535048563 32.7964117810924, 130.705718418351 32.7956934928488, 130.706185563541 32.7959259488895, 130.707191060769 32.79642626327, 130.707267624419 32.7964615260747, 130.707007968378 32.7969397374903)) ^^http://www.opengis.net/ont/geosparql#wktLiteral