Question: what nation did japan turn into a colony
[{'answer': 'Korea', 'provenance': [{'wikipedia_id': '26458209', 'title': 'Japanese colonial empire', 'start_paragraph_id': 1, 'start_character': 245, 'end_paragraph_id': 1, 'end_character': 250, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '26458209', 'title': 'Japanese colonial empire', 'start_paragraph_id': 14, 'start_character': 0, 'end_paragraph_id': 14, 'end_character': 158, 'bleu_score': 0.9181891462193901, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3434905353650185242}, 'section': 'Section::::Acquisition of Colonies.:Korea.\n'}]}]