task_categories:question-answering task_ids:extractive-qa annotations_creators:expert-generated language_creators:found multilinguality:monolingual source_datasets:original source_datasets:extended|yelp_review_full source_datasets:extended|other-amazon_reviews_ucsd source_datasets:extended|other-tripadvisor_reviews language:en license:unknown size_categories:1K<n<10K arxiv:2004.14283 region:us