メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.4000000 36.3041667, 136.4062500 36.3041667, 136.4062500 36.3083333, 136.4000000 36.3083333, 136.4000000 36.3041667)) ^^http://www.opengis.net/ont/geosparql#wktLiteral