Question: who plays nan in american horror story coven
[{'answer': 'Jamie Brewer', 'provenance': [{'wikipedia_id': '40806346', 'title': 'Jamie Brewer', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 12, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '40806346', 'title': 'Jamie Brewer', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 558, 'bleu_score': 0.6170402374145161, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5673124242561055108}, 'section': 'Section::::Abstract.'}]}]