{
  "format": "abacus-history",
  "version": 1,
  "step": 7,
  "document": "alpha=35\nbeta=22\nalpha+beta\ndouble:result*2\ndouble\ntriple:result*3\ntriple+double+22",
  "variables": {
    "result": 592,
    "alphabet": 28,
    "alpha": 35,
    "beta": 22
  },
  "functions": {
    "double": "result*2",
    "triple": "result*3"
  },
  "history": [
    "3.  alpha+beta  =  57",
    "5.  double  =  114",
    "7.  triple+double+22  =  592"
  ],
  "results": [
    {
      "step": 3,
      "expression": "alpha+beta",
      "result": "57",
      "comment": ""
    },
    {
      "step": 5,
      "expression": "double",
      "result": "114",
      "comment": ""
    },
    {
      "step": 7,
      "expression": "triple+double+22",
      "result": "592",
      "comment": ""
    }
  ],
  "graph_values": [
    57.0,
    114.0,
    592.0
  ]
}