メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.40019318913 34.7768373304376, 135.399377663292 34.7769366004465, 135.39943094326 34.776620345862, 135.399471538571 34.7764656172192, 135.3995014789 34.7763384481634, 135.39953297681 34.7761929543607, 135.399585699939 34.7759661442318, 135.399613117899 34.7758618146639, 135.400564029837 34.7763802532677, 135.400336862534 34.776660850943, 135.400217732139 34.7768079586831, 135.40019318913 34.7768373304376)) ^^http://www.opengis.net/ont/geosparql#wktLiteral