メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.954287908029 35.2423716314842, 136.954731026498 35.2424292787354, 136.955347064752 35.2424991173096, 136.955308556175 35.2435729542095, 136.955301377921 35.2440464134458, 136.955292576614 35.2448049115268, 136.954965866714 35.2444784092306, 136.954478689269 35.2439734834245, 136.953906208898 35.2433705321551, 136.953769173478 35.2432181314608, 136.953186750679 35.2426295913806, 136.953222069157 35.2425990202302, 136.953597390667 35.2422737065327, 136.953948374541 35.2419723622403, 136.954287908029 35.2423716314842)) ^^http://www.opengis.net/ont/geosparql#wktLiteral