メタデータ名 S182020030
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((139.4312500 35.4000000, 139.4375000 35.4000000, 139.4375000 35.4041667, 139.4312500 35.4041667, 139.4312500 35.4000000)) ^^http://www.opengis.net/ont/geosparql#wktLiteral