メタデータ名
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((127.7937500 26.1708334, 127.8000000 26.1708334, 127.8000000 26.1750000, 127.7937500 26.1750000, 127.7937500 26.1708334)) ^^http://www.opengis.net/ont/geosparql#wktLiteral