Q12, run 2026-11-04-1738-sonnet

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What was Marlow Utilities' rating on 1 January 2024?

Tests: Time: the rating on a date before a later downgrade.

Expected: rating = A-

✅ R1 csv run 1 graded by code

A-, from A34 (2023-01-15).

JSON: {"rating": "A-"}

✅ R1 csv run 2 graded by code

A-. A34 (2023-01-15) is the only action before that date.

JSON: {"rating": "A-"}

✅ R1 csv run 3 graded by code

A-. This is the rating assigned on 2023-01-15 (A34).

JSON: {"rating": "A-"}

✅ R1 csv run 4 graded by code

A-. A34 assigned A- on 2023-01-15, before the A36 downgrade.

JSON: {"rating": "A-"}

✅ R1 csv run 5 graded by code

A-, from A34 (2023-01-15).

JSON: {"rating": "A-"}

✅ R4 csv+markdown run 1 graded by code

A-, from A34 (2023-01-15).

JSON: {"rating": "A-"}

✅ R4 csv+markdown run 2 graded by code

A-. A34 assigned A- on 2023-01-15, before A36.

JSON: {"rating": "A-"}

✅ R4 csv+markdown run 3 graded by code

A-. A34 assigned A- on 2023-01-15, and the downgrade came later.

JSON: {"rating": "A-"}

✅ R4 csv+markdown run 4 graded by code

A-. A34 assigned A- on 2023-01-15, before the A36 downgrade.

JSON: {"rating": "A-"}

✅ R4 csv+markdown run 5 graded by code

A-, assigned on 2023-01-15 (A34).

JSON: {"rating": "A-"}

✅ R10 executed run 1 graded by code

A- (E14, A34).

JSON: {"rating": "A-"}

✅ R10 executed run 2 graded by code

A-. E14 held A- from 2023-01-15 to 2024-09-30 (A34).

JSON: {"rating": "A-"}

✅ R10 executed run 3 graded by code

A-. E14 held A- until 2024-09-30 (A34).

JSON: {"rating": "A-"}

✅ R10 executed run 4 graded by code

A- (E14 A34).

JSON: {"rating": "A-"}

✅ R10 executed run 5 graded by code

A- (A34).

JSON: {"rating": "A-"}