Question: who was elected president of central legislative assembly in 1925
[{'answer': 'Vithalbhai Patel', 'provenance': [{'wikipedia_id': '20888907', 'title': 'Central Legislative Assembly', 'start_paragraph_id': 39, 'start_character': 73, 'end_paragraph_id': 39, 'end_character': 89, 'bleu_score': 1.0, 'section': 'Section::::Notable members.\n'}]}]