Round 308

Round UUID: 20eefe15-7ddf-4185-83eb-e3e06f8e54d4

Prompt:

You are given ONE reef‑survey record.  Decide deterministically whether the reef is Healthy or Stressed using the exact procedure below.  As soon as a condition applies, OUTPUT ONLY the single word Healthy or Stressed and stop.

STEP 0 – HEALTHY OVERRIDES  (apply first)
0.1  PRIMARY OPTIMAL CONDITION
     If ALL of the following are true, output Healthy:
       • ReefIntegrityScore = Excellent
       • PredatorActivityLevel is "None" or "Very Low"
       • AcousticIntensity < 300
       • BiodiversityIndex = High

0.2  LOW‑IMPACT CONSTANT BLEACHING SAFEGUARD
     If BleachingEventsPerYear = Constant
        AND AcousticIntensity < 150
        AND PollutionLevel = Low
        AND PredatorActivityLevel is None / Very Low / Moderate Low
        AND PreviousStressIncidents = None / Minor
        AND ReefIntegrityScore is Moderate, Good or Excellent
        AND AlgalCoverage is Minimal or Moderate
     then output Healthy.

STEP 1 – STRESS OVERRIDES  (apply next; if any match, output Stressed)
1.A  POLLUTION + INVASIVES + WEAK INTEGRITY
     PollutionLevel is High OR Critical
     AND InvasiveSpeciesDetected = Yes
     AND ReefIntegrityScore is Moderate, Poor or Very Poor
     → Stressed

1.B  CONSTANT BLEACHING WITH COMPOUND STRESS
     BleachingEventsPerYear = Constant
     AND AcousticIntensity ≥ 200
     AND (   PredatorActivityLevel is High / Severe / Extreme / Catastrophic
          OR PollutionLevel is Moderate / High / Critical
          OR DistantStressIndicators = Confirmed
          OR PreviousStressIncidents = Moderate / Severe or worse
          OR ReefIntegrityScore = Poor or Very Poor )
     → Stressed

STEP 2 – ASSIGN RISK POINTS
(a) BleachingEventsPerYear   Rare 0   Occasional 1   Frequent 3   Constant 4
(b) PollutionLevel           Low 0   Moderate 2   High 4   Critical 5
(c) ReefIntegrityScore       Excellent 0   Good 1   Moderate 2   Poor 3   Very Poor 4
(d) PredatorActivityLevel   (treat "Moderate Low" as Moderate)
      None / Very Low 0   Moderate / Moderate Low 1   High / Severe / Extreme / Catastrophic 1
(e) InvasiveSpeciesDetected  Yes 1   No 0
(f) AcousticIntensity        > 900 2   500–900 1   < 500 0
(g) DistantStressIndicators  Confirmed 2   Possible 1   Absent 0
(h) PreviousStressIncidents  None / Minor 0   Moderate 1   Severe or worse 2

STEP 3 – CALCULATE TOTAL RISK
Add all points from Step 2 to obtain TOTAL RISK.

STEP 4 – FINAL DECISION
If TOTAL RISK ≥ 9   →   Stressed
Else                →   Healthy

Output NOTHING except the single required word.