Question: who ruled russia during the russo japanese war
[{'answer': 'Tsar Nicholas II', 'provenance': [{'wikipedia_id': '44575', 'title': 'Russo-Japanese War', 'start_paragraph_id': 4, 'start_character': 47, 'end_paragraph_id': 4, 'end_character': 63, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '44575', 'title': 'Russo-Japanese War', 'start_paragraph_id': 4, 'start_character': 7, 'end_paragraph_id': 4, 'end_character': 888, 'bleu_score': 0.797656999933379, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2278369020696121787}, 'section': 'Section::::Abstract.'}]}]