メタデータ名 C15221-19911213
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.3312500 34.7375000, 134.3375000 34.7375000, 134.3375000 34.7416667, 134.3312500 34.7416667, 134.3312500 34.7375000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral