メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((141.359202975822 43.0855043412699, 141.359124129057 43.0858465090378, 141.359045048645 43.0862112474726, 141.35750189017 43.0859958286045, 141.357576237127 43.085640406722, 141.357673739894 43.0852893843367, 141.357781371241 43.084868463428, 141.357906350264 43.0843100453391, 141.35869864862 43.0844200278543, 141.35946035241 43.0845161894209, 141.359277762207 43.0852171394091, 141.359202975822 43.0855043412699)) ^^http://www.opengis.net/ont/geosparql#wktLiteral