Question: who reigned as emperor in germany in the late nineteenth century
[{'answer': 'Wilhelm I', 'provenance': [{'wikipedia_id': '12674', 'title': 'German Empire', 'start_paragraph_id': 1, 'start_character': 182, 'end_paragraph_id': 1, 'end_character': 191, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Frederick III', 'provenance': [{'wikipedia_id': '12674', 'title': 'German Empire', 'start_paragraph_id': 72, 'start_character': 82, 'end_paragraph_id': 72, 'end_character': 95, 'bleu_score': 1.0, 'section': 'Section::::History.:Year of three emperors.\n'}]}, {'answer': 'Wilhelm II', 'provenance': [{'wikipedia_id': '12674', 'title': 'German Empire', 'start_paragraph_id': 1, 'start_character': 182, 'end_paragraph_id': 1, 'end_character': 192, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]