["task_categories:question-answering", "task_ids:open-domain-qa", "annotations_creators:crowdsourced", "language_creators:found", "multilinguality:multilingual", "multilinguality:translation", "source_datasets:extended|natural_questions", "source_datasets:original", "language:ar", "language:da", "language:de", "language:en", "language:es", "language:fi", "language:fr", "language:he", "language:hu", "language:it", "language:ja", "language:km", "language:ko", "language:ms", "language:nl", "language:no", "language:pl", "language:pt", "language:ru", "language:sv", "language:th", "language:tr", "language:vi", "language:zh", "license:cc-by-3.0", "size_categories:10K<n<100K", "arxiv:2007.15207", "region:us"]