Question: what is meat tenderizer and what does it do
[{'answer': 'a hand - powered tool', 'provenance': [{'wikipedia_id': '7651622', 'title': 'Meat tenderizer', 'start_paragraph_id': 1, 'start_character': 51, 'end_paragraph_id': 1, 'end_character': 75, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'tenderize slabs of meat in preparation for cooking'}, {'provenance': [{'wikipedia_id': '7651622', 'title': 'Meat tenderizer', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 267, 'bleu_score': 0.955027111100031, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17591872009580945055}, 'section': 'Section::::Abstract.'}]}]