メタデータ名 G20523867531
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.1687500 42.7833333, 143.1750000 42.7833333, 143.1750000 42.7875000, 143.1687500 42.7875000, 143.1687500 42.7833333)) ^^http://www.opengis.net/ont/geosparql#wktLiteral