Question: who lead and army and elephants over the alps
[{'answer': 'Hannibal', 'provenance': [{'wikipedia_id': '30211616', 'title': "Hannibal's crossing of the Alps", 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 8, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]