Question: who did the us fight in the first world war
[{'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': 'Austria - Hungary', 'provenance': [{'wikipedia_id': '25604889', 'title': 'United States in World War I', 'start_paragraph_id': 7, 'start_character': 1098, 'end_paragraph_id': 7, 'end_character': 1114, 'bleu_score': 1.0, 'section': 'Section::::Entry.\n'}]}, {'provenance': [{'wikipedia_id': '25604889', 'title': 'United States in World War I', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 1187, 'bleu_score': 0.97632420608221, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 4082331120210127183}, 'section': 'Section::::Entry.\n'}]}]