{
  "fields": [{"id":"_id","type":"int"},{"id":"Subject","type":"text"},{"id":"Use","type":"numeric"},{"id":"Don't use","type":"numeric"}],
  "records": [
    [1,"วิชาคณิตศาสตร์",6514,129],
    [2,"วิชาวิทยาศาสตร์",6405,230],
    [3,"วิชาเทคโนโลยี",5484,1138]
]}