{
  "centroid":45.78037909716164,
  "trace": [
    "if days_to_flight is many_days [0.12] then price_increase is low [0.12].",
    "if days_to_flight is few_days [0.83] then price_increase is moderate [0.83].",
    "if days_to_flight is last_minute [0.00] then price_increase is high [0.00].",
    "⌖low×[0.12]+moderate×[0.83]+high×[0.00].",
    "⌖down(0,0,25)×[0.12]+tri(20,50,75)×[0.83]+up(70,100,100)×[0.00].",
    "⌖45.78."
  ],
  "what":"rules_result"
}