Question: who did the u.s. fight in world war i
[{'answer': 'Germany', 'provenance': [{'wikipedia_id': '25604889', 'title': 'United States in World War I', 'start_paragraph_id': 1, 'start_character': 34, 'end_paragraph_id': 1, 'end_character': 41, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Austro - Hungarian Empire', 'provenance': [{'wikipedia_id': '25604889', 'title': 'United States in World War I', 'start_paragraph_id': 34, 'start_character': 273, 'end_paragraph_id': 34, 'end_character': 299, 'bleu_score': 1.0, 'section': 'Section::::War declared.\n'}]}, {'provenance': [{'wikipedia_id': '25604889', 'title': 'United States in World War I', 'start_paragraph_id': 34, 'start_character': 0, 'end_paragraph_id': 34, 'end_character': 665, 'bleu_score': 0.933792591768927, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6875220883901755824}, 'section': 'Section::::War declared.\n'}]}]