メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.705356248222 34.8333552111751, 134.704923578587 34.8335049333128, 134.704766896082 34.8331842587247, 134.705172937039 34.8330487749575, 134.705356248222 34.8333552111751)) ^^http://www.opengis.net/ont/geosparql#wktLiteral