["task_categories:question-answering", "source_datasets:original", "language:ru", "language:en", "license:cc-by-sa-4.0", "size_categories:1K<n<10K", "format:parquet", "modality:text", "library:datasets", "library:pandas", "library:mlcroissant", "library:polars", "arxiv:2005.10659", "region:us", "qa", "machine reading"]