メタデータ名 polygon
<http://xmlns.oracle.com/rdf/geo/srid/4612> POLYGON((136.998188941358 34.9070637427456, 136.997824343747 34.9069801348985, 136.997584698447 34.9069398003724, 136.997056473894 34.9068508918132, 136.996344613555 34.9067329889931, 136.996282486731 34.9066693055137, 136.995849397882 34.9065970036427, 136.996055826829 34.9055100945465, 136.996088531244 34.9053481562642, 136.998017622235 34.9056112125514, 136.998030873066 34.9057573684953, 136.998069966337 34.9061887236089, 136.998104297394 34.906451396634, 136.998138665986 34.906706533322, 136.998188941358 34.9070637427456)) ^^http://www.opengis.net/ont/geosparql#wktLiteral