メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((143.88613432378 43.7998484377639, 143.887257067933 43.7999133012042, 143.887518349534 43.8002016983863, 143.888146616952 43.8008588984808, 143.888127189537 43.8008656812543, 143.888455661249 43.8011822952289, 143.887569936549 43.8012648457695, 143.886701886173 43.8013475753637, 143.886428814348 43.8013739561552, 143.886234014441 43.8013939231364, 143.885494512233 43.8014697043231, 143.885318831062 43.8014858792514, 143.884435008064 43.801567217113, 143.884589908014 43.800319863574, 143.884695005851 43.7997595625398, 143.88613432378 43.7998484377639)) ^^http://www.opengis.net/ont/geosparql#wktLiteral