task_categories:question-answering task_ids:extractive-qa annotations_creators:crowdsourced language_creators:crowdsourced multilinguality:multilingual source_datasets:original language:en language:de language:es language:ar language:zh language:vi language:hi license:cc-by-sa-3.0 size_categories:10K<n<100K arxiv:1910.07475 region:us