メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((140.888588708197 37.0546159760859, 140.888859348847 37.0546493288975, 140.889803470322 37.0547567926631, 140.889582628098 37.0561979747181, 140.889552081249 37.0563512920877, 140.888738823203 37.0562508986225, 140.888352468172 37.056177253906, 140.888086837003 37.0561189351594, 140.887927964731 37.0560762080767, 140.887496846947 37.0560175312523, 140.887510332769 37.0558497230371, 140.887551151183 37.0558162735628, 140.887689930084 37.0550361547309, 140.887764322598 37.0546935709107, 140.887827296558 37.0545220839156, 140.887972733145 37.0545400085132, 140.888588708197 37.0546159760859)) ^^http://www.opengis.net/ont/geosparql#wktLiteral