メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.3062500 35.4125000, 136.3125000 35.4125000, 136.3125000 35.4166667, 136.3062500 35.4166667, 136.3062500 35.4125000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral