Question: how many grains is a 22 long rifle bullet
[{'answer': '20 to 60 grains'}, {'provenance': [{'wikipedia_id': '821939', 'title': '.22 Long Rifle', 'start_paragraph_id': 8, 'start_character': 0, 'end_paragraph_id': 8, 'end_character': 563, 'bleu_score': 0.7286724183329041, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13680297855892956535}, 'section': 'Section::::History.:Popularity in the United States.\n'}]}]