Question: when did the 7 years war start and end
[{'answer': '1756 and 1763', 'provenance': [{'wikipedia_id': '19039354', 'title': "Seven Years' War", 'start_paragraph_id': 1, 'start_character': 58, 'end_paragraph_id': 1, 'end_character': 71, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '19039354', 'title': "Seven Years' War", 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 649, 'bleu_score': 0.590232967528699, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13666273871466311173}, 'section': 'Section::::Abstract.'}]}]