Question: who set up a five year plan for the operation of the soviet union
[{'answer': 'Joseph Stalin', 'provenance': [{'wikipedia_id': '2692270', 'title': 'First five-year plan', 'start_paragraph_id': 1, 'start_character': 155, 'end_paragraph_id': 1, 'end_character': 168, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2692270', 'title': 'First five-year plan', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 416, 'bleu_score': 0.6182068172356631, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16414602876356020454}, 'section': 'Section::::Abstract.'}]}]