Question: when was the world's first camera invented
[{'answer': 'circa 1550', 'provenance': [{'wikipedia_id': '3032314', 'title': 'History of the camera', 'start_paragraph_id': 4, 'start_character': 151, 'end_paragraph_id': 4, 'end_character': 161, 'bleu_score': 1.0, 'section': 'Section::::Camera obscura.\n'}]}, {'provenance': [{'wikipedia_id': '3032314', 'title': 'History of the camera', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 268, 'bleu_score': 0.962600167205617, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14625861551589866465}, 'section': 'Section::::Camera obscura.\n'}]}]