メタデータ名 indicator-H1612
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.5562500 33.6125000, 135.5625000 33.6125000, 135.5625000 33.6166667, 135.5562500 33.6166667, 135.5562500 33.6125000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral