Question: where are the cones of the eye located
[{'answer': 'concentrated towards the macula', 'provenance': [{'wikipedia_id': '534710', 'title': 'Cone cell', 'start_paragraph_id': 1, 'start_character': 569, 'end_paragraph_id': 1, 'end_character': 600, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '534710', 'title': 'Cone cell', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 600, 'bleu_score': 0.573529358254489, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6493177319866308790}, 'section': 'Section::::Abstract.'}]}]