anchor.diff:                  },
                   "must_not" : {
                       "range" : {
  -                        "age" : { "from" : 10, "to" : 20 }
  +                        "age" : { "gte" : 10, "lt" : 20 }
                       }
                   },
                   "should" : [
  
positive.code: {
      "filtered" : {
          "query" : {
              "queryString" : { 
                  "default_field" : "message", 
                  "query" : "elasticsearch"
              }
          },
  
negative.code:             }
          }
      }
  }
  --------------------------------------------------
  
  [float]
  