メタデータ名 C3901
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.8875000 35.8333333, 137.8937500 35.8333333, 137.8937500 35.8375000, 137.8875000 35.8375000, 137.8875000 35.8333333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral