Question: how long was the russian war in afghanistan
[{'answer': 'over nine years', 'provenance': [{'wikipedia_id': '80197', 'title': 'Soviet–Afghan War', 'start_paragraph_id': 1, 'start_character': 29, 'end_paragraph_id': 1, 'end_character': 44, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '80197', 'title': 'Soviet–Afghan War', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 566, 'bleu_score': 0.749956012521098, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 600182592060911727}, 'section': 'Section::::Abstract.'}]}]