メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.909729277052 35.0204949148745, 136.909184075165 35.0205279215758, 136.907093135746 35.0205944043808, 136.907061515591 35.0202509507472, 136.907177792432 35.0197988760576, 136.908876041113 35.0200617495713, 136.909645648399 35.0202808524737, 136.909671363707 35.0203519670883, 136.909715344221 35.0204607985567, 136.909729277052 35.0204949148745)) ^^http://www.opengis.net/ont/geosparql#wktLiteral