Question: who plays emma frost in x-men first class
[{'answer': 'January Jones', 'provenance': [{'wikipedia_id': '697926', 'title': 'Emma Frost', 'start_paragraph_id': 3, 'start_character': 138, 'end_paragraph_id': 3, 'end_character': 151, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]