Question: who did the united states defeat in a late-nineteenth century war
[{'answer': 'Spain', 'provenance': [{'wikipedia_id': '28265', 'title': 'Spanish–American War', 'start_paragraph_id': 1, 'start_character': 66, 'end_paragraph_id': 1, 'end_character': 71, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]