Question: who is the new host of spring baking championship
[{'answer': 'Ali Khan', 'provenance': [{'wikipedia_id': '51841355', 'title': 'Spring Baking Championship', 'start_paragraph_id': 2, 'start_character': 310, 'end_paragraph_id': 2, 'end_character': 318, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]