{
  "labels":[
    "rv_dil_normal",
    "rv_dil_severe",
    "rv_dil_mild",
    "rv_dil_moderate",
    "rv_dil_present"
  ],
  "spans_key":"sc",
  "threshold":null,
  "max_positive":1,
  "negative_weight":0.6,
  "allow_overlap":true
}