Question: what does the amg stand for in mercedes benz
[{'answer': 'Aufrecht , Melcher and Großaspach', 'provenance': [{'wikipedia_id': '854888', 'title': 'Mercedes-AMG', 'start_paragraph_id': 6, 'start_character': 307, 'end_paragraph_id': 6, 'end_character': 341, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '854888', 'title': 'Mercedes-AMG', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 596, 'bleu_score': 0.979054689945215, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3411903857465049797}, 'section': 'Section::::History.\n'}]}]