Q40, run 2026-11-04-2035-haiku
Which source is in the highest tier?
Tests: Local code: K3 is the highest tier, not K1.
Expected: source = S01
csv run 1
S01 (Journal of Marine Autonomy), tier K3.
JSON: {"source": "S01"}
csv run 2
S01. **Reasoning:** S01 is the only source at tier K3.
JSON: {"source": "S01"}
csv run 3
S01, the Journal of Marine Autonomy, is the only K3 source.
JSON: {"source": "S01"}
csv run 4
S01 (Journal of Marine Autonomy), the only K3 source.
JSON: {"source": "S01"}
csv run 5
S01 (Journal of Marine Autonomy, K3).
JSON: {"source": "S01"}
executed run 1
S01 (Journal of Marine Autonomy), tier_rank 1.
JSON: {"source": "S01"}
executed run 2
S01 (Journal of Marine Autonomy), tier K3 with tier_rank 1.
JSON: {"source": "S01"}
executed run 3
S01 (Journal of Marine Autonomy), tier_rank 1.
JSON: {"source": "S01"}
executed run 4
S01 (Journal of Marine Autonomy), tier_rank 1.
JSON: {"source": "S01"}
executed run 5
S01. It is the only source with tier_rank 1.
JSON: {"source": "S01"}