メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.994391957303 34.8878889986831, 136.994932926446 34.8888457014308, 136.994775767221 34.8891931151316, 136.994521441398 34.8897213924145, 136.99191741222 34.888823981219, 136.991890481091 34.8878530780582, 136.991882319615 34.8874738059358, 136.992483279913 34.8875085504842, 136.993191125254 34.887537177562, 136.994143921164 34.8874477597096, 136.994391957303 34.8878889986831)) ^^http://www.opengis.net/ont/geosparql#wktLiteral