Question: who did the us declare war on in ww1
[{'answer': 'the German Empire', 'provenance': [{'wikipedia_id': '28040759', 'title': 'United States declaration of war on Germany (1917)', 'start_paragraph_id': 1, 'start_character': 136, 'end_paragraph_id': 1, 'end_character': 153, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '28040759', 'title': 'United States declaration of war on Germany (1917)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 205, 'bleu_score': 0.9419661180380051, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6201380716709196205}, 'section': 'Section::::Abstract.'}]}]