メタデータ名 C15211-20070328
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.2312500 38.8208334, 141.2375000 38.8208334, 141.2375000 38.8250000, 141.2312500 38.8250000, 141.2312500 38.8208334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral