メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.014683530496 34.8868954786572, 137.014530838875 34.8869023318718, 137.01394788021 34.886931610998, 137.013380675841 34.8869396366286, 137.013071082284 34.8869146699653, 137.013270028181 34.8860332158605, 137.013300718524 34.8858772516426, 137.013463404632 34.8851647032587, 137.013763335548 34.8852422687987, 137.015164579448 34.8856172854624, 137.014683530496 34.8868954786572)) ^^http://www.opengis.net/ont/geosparql#wktLiteral