{"id":"dynamodb-ion-set-annotations-required","text":"Amazon Ion lists require type annotations (`$dynamodb_SS`, `$dynamodb_NS`, `$dynamodb_BS`) to import as DynamoDB Sets; without annotations, Ion lists become DynamoDB Lists.","truth_value":"IN","source":"entries/2026/03/11/amazondynamodb-latest-developerguide-S3DataImportFormathtml.md","source_url":"","source_hash":"d9b68dd080460c8b","justifications":[],"dependents":[],"metadata":{},"explanation":{"steps":[{"node":"dynamodb-ion-set-annotations-required","truth_value":"IN","reason":"premise"}]}}