Question: who replaced great britain as the leading industrial power in europe after 1870
[{'answer': 'China', 'provenance': [{'wikipedia_id': '39937022', 'title': 'International relations of the Great Powers (1814–1919)', 'start_paragraph_id': 39, 'start_character': 1529, 'end_paragraph_id': 39, 'end_character': 1534, 'bleu_score': 1.0, 'section': 'Section::::1830–1850s.:British policies.\n'}]}, {'provenance': [{'wikipedia_id': '39937022', 'title': 'International relations of the Great Powers (1814–1919)', 'start_paragraph_id': 129, 'start_character': 0, 'end_paragraph_id': 129, 'end_character': 1155, 'bleu_score': 0.9891594913313011, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6105661648883610804}, 'section': 'Section::::Imperialism.:Japan becomes a power.:War with China.\n'}]}]