メタデータ名 population
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((137.8250000 36.3250000, 137.8312500 36.3250000, 137.8312500 36.3291667, 137.8250000 36.3291667, 137.8250000 36.3250000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral