Question: when was journey to the center of the earth made
[{'answer': '1864', 'provenance': [{'wikipedia_id': '723638', 'title': 'Journey to the Center of the Earth', 'start_paragraph_id': 1, 'start_character': 158, 'end_paragraph_id': 1, 'end_character': 162, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '723638', 'title': 'Journey to the Center of the Earth', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 592, 'bleu_score': 0.897349160424848, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11763494274306508093}, 'section': 'Section::::Abstract.'}]}]