["task_categories:question-answering", "task_ids:closed-domain-qa", "annotations_creators:crowdsourced", "language_creators:crowdsourced", "multilinguality:monolingual", "source_datasets:original", "language:en", "license:cc-by-3.0", "size_categories:100K<n<1M", "arxiv:1606.03126", "region:us"]