{"id":"prefix-match-requires-word-boundary","text":"`is_prefix_string` only returns `True` when `s` aligns exactly with a word boundary in `words`; partial word matches are rejected because equality is checked after appending whole words","truth_value":"IN","source":"entries/2026/06/06/check-if-string-is-a-prefix-of-array-solution.md","source_url":"","source_hash":"","justifications":[],"dependents":[],"metadata":{},"created_at":"","updated_at":"","reviewed_at":"","verified_at":"","retracted_at":"","explanation":{"steps":[{"node":"prefix-match-requires-word-boundary","truth_value":"IN","reason":"premise"}]}}