Question: when did the war in vietnam actually start
[{'answer': '1 November 1955', 'provenance': [{'wikipedia_id': '32611', 'title': 'Vietnam War', 'start_paragraph_id': 1, 'start_character': 195, 'end_paragraph_id': 1, 'end_character': 210, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '32611', 'title': 'Vietnam War', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 814, 'bleu_score': 0.546606524527625, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4311447454380012048}, 'section': 'Section::::Abstract.'}]}]