Question: when did world war ii start and finish
[{'answer': 'from 1939 to 1945', 'provenance': [{'wikipedia_id': '32927', 'title': 'World War II', 'start_paragraph_id': 1, 'start_character': 114, 'end_paragraph_id': 1, 'end_character': 131, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '32927', 'title': 'World War II', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 885, 'bleu_score': 0.794396362825959, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9832227278141425556}, 'section': 'Section::::Abstract.'}]}]