task_categories:question-answering task_ids:open-domain-qa annotations_creators:crowdsourced language_creators:expert-generated language_creators:found multilinguality:multilingual source_datasets:original source_datasets:extended|tydiqa language:ar language:bn language:fi language:ja language:ko language:ru language:te license:mit size_categories:10K<n<100K arxiv:2010.11856 region:us