Question: who is playing glinda in wicked on broadway
[{'answer': 'Kristin Chenoweth', 'provenance': [{'wikipedia_id': '1678965', 'title': 'Wicked (musical)', 'start_paragraph_id': 3, 'start_character': 421, 'end_paragraph_id': 3, 'end_character': 438, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]