メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.266324575812 35.2934331616572, 135.266234045355 35.2930131851691, 135.266612980265 35.2928444896735, 135.267217109289 35.2937286155849, 135.266743722399 35.2939028693104, 135.266505491869 35.2934688317549, 135.266324575812 35.2934331616572)) ^^http://www.opengis.net/ont/geosparql#wktLiteral