メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.348088425583 43.0330104738078, 141.348094715886 43.0330457583212, 141.348055930545 43.0333571565432, 141.348013179589 43.0337036890719, 141.347980072347 43.0338564668125, 141.345988186371 43.0337043748242, 141.346024155512 43.0334287536082, 141.346033647627 43.0333633514341, 141.346072453507 43.0330316990175, 141.346090458897 43.0328891407475, 141.346099792134 43.0328346381652, 141.346191318269 43.0322289028459, 141.347438355783 43.0323153362611, 141.348188566265 43.0323716087363, 141.348132440496 43.0326953889281, 141.348088425583 43.0330104738078)) ^^http://www.opengis.net/ont/geosparql#wktLiteral