task_categories:fill-mask task_categories:summarization task_categories:text-classification task_ids:masked-language-modeling task_ids:news-articles-summarization task_ids:news-articles-headline-generation annotations_creators:expert-generated language_creators:expert-generated multilinguality:monolingual source_datasets:original language:en license:cc-by-4.0 size_categories:10K<n<100K arxiv:2008.00774 region:us