メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((134.552843344028 34.0655852132471, 134.552946654797 34.0658701451168, 134.551700276589 34.0661110732807, 134.551595043404 34.065820871708, 134.55149547952 34.0655305529288, 134.551863533228 34.0654609823184, 134.552752027422 34.0653119400116, 134.552843344028 34.0655852132471)) ^^http://www.opengis.net/ont/geosparql#wktLiteral