Question: what does the m&m stand for on the candy
[{'answer': 'Forrest E. Mars Sr.', 'provenance': [{'wikipedia_id': '485487', 'title': "M&M's", 'start_paragraph_id': 5, 'start_character': 616, 'end_paragraph_id': 5, 'end_character': 635, 'bleu_score': 1.0, 'section': 'Section::::History.:1940–70s.\n'}]}, {'answer': 'Bruce Murrie', 'provenance': [{'wikipedia_id': '485487', 'title': "M&M's", 'start_paragraph_id': 5, 'start_character': 672, 'end_paragraph_id': 5, 'end_character': 684, 'bleu_score': 1.0, 'section': 'Section::::History.:1940–70s.\n'}]}, {'provenance': [{'wikipedia_id': '485487', 'title': "M&M's", 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 919, 'bleu_score': 0.971165681611961, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 7230227380665972421}, 'section': 'Section::::History.:1940–70s.\n'}]}]