task_categories:question-answering task_ids:extractive-qa task_ids:open-domain-qa annotations_creators:expert-generated annotations_creators:found language_creators:expert-generated language_creators:found multilinguality:monolingual source_datasets:extended|other-BioASQ source_datasets:extended|other-DuoRC source_datasets:extended|other-HotpotQA source_datasets:extended|other-Natural-Questions source_datasets:extended|other-Relation-Extraction source_datasets:extended|other-SQuAD source_datasets:extended|other-SearchQA source_datasets:extended|other-TextbookQA source_datasets:extended|other-TriviaQA language:en license:unknown size_categories:100K<n<1M arxiv:2005.02507 region:us