Q11, run 2026-11-04-1712-sonnet

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What was Marlow Utilities' rating on 1 June 2025?

Tests: Time: Marlow's actions are not in date order in the file.

Expected: rating = BBB+

✅ R1 csv run 1 graded by code

BBB+ (A36, 2024-09-30).

JSON: {"rating": "BBB+"}

✅ R1 csv run 2 graded by code

BBB+. A36 downgraded E14 to BBB+ on 2024-09-30, and the later RW (A35) kept BBB+.

JSON: {"rating": "BBB+"}

✅ R1 csv run 3 graded by code

BBB+. E14 was downgraded from A- to BBB+ on 2024-09-30 (A36).

JSON: {"rating": "BBB+"}

✅ R1 csv run 4 graded by code

BBB+. A36 downgraded E14 to BBB+ on 2024-09-30, and A35 on 2025-11-20 came later.

JSON: {"rating": "BBB+"}

✅ R1 csv run 5 graded by code

BBB+. The downgrade from A- to BBB+ was on 2024-09-30 (A36).

JSON: {"rating": "BBB+"}

✅ R10 executed run 1 graded by code

BBB+ (A36).

JSON: {"rating": "BBB+"}

✅ R10 executed run 2 graded by code

BBB+ (A36, 2024-09-30 to 2025-11-20).

JSON: {"rating": "BBB+"}

✅ R10 executed run 3 graded by code

BBB+ (A36, valid 2024-09-30 to 2025-11-20).

JSON: {"rating": "BBB+"}

✅ R10 executed run 4 graded by code

BBB+ (E14, A36).

JSON: {"rating": "BBB+"}

✅ R10 executed run 5 graded by code

BBB+ (A36).

JSON: {"rating": "BBB+"}