{"id":"solutions-use-only-stdlib-or-builtins","text":"Solution files import at most `unittest` from the standard library; no external dependencies are used across any of the examined solutions.","truth_value":"IN","source":"entries/2026/06/06/remove-vowels-from-a-string-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"solutions-use-only-stdlib-or-builtins","truth_value":"IN","reason":"premise"}]}}