メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.021765704699 35.3277869170787, 136.02156019661 35.327827683364, 136.020285305874 35.3280710622663, 136.019716653375 35.3261205498746, 136.021151624875 35.3258561401469, 136.021765704699 35.3277869170787)) ^^http://www.opengis.net/ont/geosparql#wktLiteral