Question: whats the black part of the eye called
[{'answer': 'The pupil', 'provenance': [{'wikipedia_id': '74819', 'title': 'Pupil', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 9, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '74819', 'title': 'Pupil', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 320, 'bleu_score': 0.9374009563674951, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1842497269730806620}, 'section': 'Section::::Abstract.'}]}]