Question: who set up a 5 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': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 278, 'bleu_score': 0.599482291362884, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3486664929072055161}, 'section': 'Section::::Abstract.'}]}]