メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((142.356071549069 43.8099320512608, 142.355552955851 43.8102928557496, 142.355056038175 43.8106693206746, 142.354526645066 43.8110458107273, 142.354024277275 43.8114144335224, 142.353626266195 43.811138674608, 142.352088275305 43.8099885312732, 142.352563609525 43.809623842644, 142.35307135403 43.8092434770025, 142.353579126661 43.8088748526943, 142.354086886931 43.8085101459418, 142.356071549069 43.8099320512608)) ^^http://www.opengis.net/ont/geosparql#wktLiteral