{
  "winner_candidate": "K3",
  "composite": 0.4875611262745013,
  "f1": 0.5344381149663388,
  "iter": 1,
  "candidates_summary": [
    {
      "id": "K1",
      "f1": 0.38489646772228986,
      "composite": 0.35744376996553073
    },
    {
      "id": "K2",
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      "composite": 0.4163784452168347
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    {
      "id": "K3",
      "f1": 0.5344381149663388,
      "composite": 0.4875611262745013
    },
    {
      "id": "K4",
      "f1": 0.4569672131147541,
      "composite": 0.41678423333049597
    },
    {
      "id": "K5",
      "f1": -1.0,
      "composite": -1.0
    }
  ]
}