Question: who takes over for the president if he cannot fulfill his duty
[{'answer': 'Vice President', 'provenance': [{'wikipedia_id': '55834', 'title': 'Presidential Succession Act', 'start_paragraph_id': 5, 'start_character': 181, 'end_paragraph_id': 5, 'end_character': 195, 'bleu_score': 1.0, 'section': 'Section::::Presidential Succession Act of 1792.\n'}]}]