{"id":"circular-sentence-nonempty-assumed","text":"`is_circular` accesses `sentence[0]` and `sentence[-1]` unconditionally; an empty string raises `IndexError`.","truth_value":"OUT","source":"entries/2026/06/06/circular-sentence-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":["edge-case-inputs-crash-free"],"metadata":{"_retracted":true},"created_at":"","updated_at":"2026-06-17T15:25:04+00:00","reviewed_at":"","verified_at":"","retracted_at":"2026-06-17T15:25:04+00:00","explanation":{"steps":[{"node":"circular-sentence-nonempty-assumed","truth_value":"OUT","reason":"retracted premise"}]}}