Question: where are rod cells located in the eye
[{'answer': 'in the retina', 'provenance': [{'wikipedia_id': '514355', 'title': 'Rod cell', 'start_paragraph_id': 1, 'start_character': 34, 'end_paragraph_id': 1, 'end_character': 47, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '514355', 'title': 'Rod cell', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 581, 'bleu_score': 0.9559054761834711, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8812966394274263399}, 'section': 'Section::::Abstract.'}]}]