Question: who was president the prohibition of alcohol went into effect
[{'answer': 'Woodrow Wilson', 'provenance': [{'wikipedia_id': '22418955', 'title': 'Prohibition in the United States', 'start_paragraph_id': 10, 'start_character': 121, 'end_paragraph_id': 10, 'end_character': 135, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '22418955', 'title': 'Prohibition in the United States', 'start_paragraph_id': 10, 'start_character': 0, 'end_paragraph_id': 10, 'end_character': 361, 'bleu_score': 0.9645876452711911, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8150943218274672278}, 'section': 'Section::::History.\n'}]}]