Question: the halo in a middle ages painting to indicate a subject is holy is a
[{'answer': 'iconography', 'provenance': [{'wikipedia_id': '2455406', 'title': 'Halo (religious iconography)', 'start_paragraph_id': 0, 'start_character': 16, 'end_paragraph_id': 0, 'end_character': 27, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '2455406', 'title': 'Halo (religious iconography)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 803, 'bleu_score': 0.927353011317471, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3368699752792472553}, 'section': 'Section::::Abstract.'}]}]