tags: ["task_categories:question-answering", "task_ids:open-domain-qa", "annotations_creators:expert-generated", "language_creators:machine-generated", "multilinguality:monolingual", "source_datasets:original", "language:en", "license:apache-2.0", "size_categories:1M<n<10M", "arxiv:2104.08727", "region:us"]