メタデータ名 C21211-19831001
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.8312500 35.1500000, 139.8375000 35.1500000, 139.8375000 35.1541667, 139.8312500 35.1541667, 139.8312500 35.1500000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral