メタデータ名 C28342-19930301
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.8125000 42.9500000, 143.8187500 42.9500000, 143.8187500 42.9541667, 143.8125000 42.9541667, 143.8125000 42.9500000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral