Question: when was the last time a president was shot
[{'answer': 'March 30 , 1981', 'provenance': [{'wikipedia_id': '574536', 'title': 'List of United States presidential assassination attempts and plots', 'start_paragraph_id': 48, 'start_character': 0, 'end_paragraph_id': 48, 'end_character': 15, 'bleu_score': 1.0, 'section': 'Section::::Assassination attempts and plots.:Ronald Reagan.\n'}]}]