メタデータ名 indicator-H3312
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.8187500 34.9208334, 139.8250000 34.9208334, 139.8250000 34.9250000, 139.8187500 34.9250000, 139.8187500 34.9208334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral