{
  "centroid":8.00158447217271,
  "trace": [
    "if days_to_flight is many_days [0.6875] then price_increase is low [0.6875].",
    "if days_to_flight is few_days [0.0000] then price_increase is moderate [0.0000].",
    "⌖low×[0.6875]+moderate×[0.0000].",
    "⌖down(0,0,25)×[0.6875]+tri(20,50,75)×[0.0000].",
    "⌖8.0016."
  ],
  "what":"rules_result"
}