task_categories:question-answering task_categories:text-generation task_ids:extractive-qa task_ids:closed-domain-qa language:en license:mit size_categories:10K<n<100K arxiv:2411.07140 region:us synthetic document-grounded gemma gemma-3n rag retrieval-augmented-generation sft fine-tuning gpt-4o-mini-generated abstention simpleqa-verified