task_categories:text-generation task_categories:question-answering language:bn language:en license:apache-2.0 size_categories:10K<n<100K format:parquet format:optimized-parquet modality:tabular modality:text library:datasets library:pandas library:polars library:mlcroissant arxiv:2601.06767 arxiv:2505.21354 arxiv:2406.02301 region:us math bengali reasoning curriculum-learning grpo