メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((135.4790100578 34.8404841760687, 135.47914779783 34.8406342825678, 135.479279174521 34.8407774600105, 135.479429090323 34.8409408590353, 135.479273521756 34.8410378797581, 135.479115803726 34.8408655730719, 135.478987440541 34.8407253660708, 135.478855769306 34.8405814829785, 135.478727449675 34.8404412758533, 135.478882159596 34.8403447452787, 135.4790100578 34.8404841760687)) ^^http://www.opengis.net/ont/geosparql#wktLiteral