{
  "centroid":83.28920046921415,
  "trace": [
    "if days_to_flight is many_days [0.00] then price_increase is low [0.00].",
    "if days_to_flight is few_days [0.09] then price_increase is moderate [0.09].",
    "if days_to_flight is last_minute [0.80] then price_increase is high [0.80].",
    "⌖low×[0.00]+moderate×[0.09]+high×[0.80].",
    "⌖down(0,0,25)×[0.00]+tri(20,50,75)×[0.09]+up(70,100,100)×[0.80].",
    "⌖83.29."
  ],
  "what":"rules_result"
}