Question: when was the original m72 law first produced
[{'answer': '1963', 'provenance': [{'wikipedia_id': '795668', 'title': 'M72 LAW', 'start_paragraph_id': 1, 'start_character': 544, 'end_paragraph_id': 1, 'end_character': 548, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '795668', 'title': 'M72 LAW', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 683, 'bleu_score': 0.8634150856456191, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 10344106104329304159}, 'section': 'Section::::Abstract.'}]}]