メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((144.265494722175 44.0231098582327, 144.264735854984 44.022858661941, 144.26407134902 44.022711769224, 144.263775849938 44.0226473814508, 144.26378683449 44.022632228509, 144.264046234593 44.0221315638656, 144.264224418447 44.0217189619157, 144.266058130173 44.0218961987652, 144.266073968364 44.0218977369445, 144.266024660732 44.0221735317948, 144.265794102044 44.0225758832234, 144.265494722175 44.0231098582327)) ^^http://www.opengis.net/ont/geosparql#wktLiteral