["task_categories:text-retrieval", "task_ids:document-retrieval", "annotations_creators:no-annotation", "language_creators:found", "multilinguality:multilingual", "source_datasets:extended|c4", "language:fa", "language:ru", "language:zh", "language:en", "license:odc-by", "size_categories:1M<n<10M", "region:us"]