メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.260544827805 44.0255616802746, 144.25926625688 44.0251179815545, 144.259641953065 44.0245507485249, 144.260923561187 44.0250038349228, 144.260544827805 44.0255616802746)) ^^http://www.opengis.net/ont/geosparql#wktLiteral