メタデータ名 indicator-K6103
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.046615204939 42.9117683484058, 143.047391372949 42.9118201995005, 143.04723583584 42.9129515193919, 143.046466560944 42.9129011665106, 143.04571295745 42.9128420442563, 143.04588030623 42.9117191573195, 143.046615204939 42.9117683484058)) ^^http://www.opengis.net/ont/geosparql#wktLiteral