Question: who is responsible for the first permanent photograph called a heliograph
[{'answer': 'Nicéphore Niépce', 'provenance': [{'wikipedia_id': '143000', 'title': 'Nicéphore Niépce', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 16, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '143000', 'title': 'Nicéphore Niépce', 'start_paragraph_id': 1, 'start_character': 17, 'end_paragraph_id': 1, 'end_character': 678, 'bleu_score': 0.8936531158183351, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9057205739698854248}, 'section': 'Section::::Abstract.'}]}]