Question: what effect does the curvature of a mirror
[{'answer': 'spherical aberration', 'provenance': [{'wikipedia_id': '5732433', 'title': 'Curved mirror', 'start_paragraph_id': 1, 'start_character': 495, 'end_paragraph_id': 1, 'end_character': 515, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '5732433', 'title': 'Curved mirror', 'start_paragraph_id': 19, 'start_character': 0, 'end_paragraph_id': 19, 'end_character': 600, 'bleu_score': 0.9806740509884301, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1118307558181904715}, 'section': 'Section::::Mirror shape.\n'}]}]