Question: what's the name of the wicked witch of the west
[{'answer': 'Bastinda', 'provenance': [{'wikipedia_id': '933294', 'title': 'Wicked Witch of the West', 'start_paragraph_id': 10, 'start_character': 110, 'end_paragraph_id': 10, 'end_character': 118, 'bleu_score': 1.0, 'section': 'Section::::In other books.\n'}]}, {'answer': 'Elphaba', 'provenance': [{'wikipedia_id': '933294', 'title': 'Wicked Witch of the West', 'start_paragraph_id': 27, 'start_character': 526, 'end_paragraph_id': 27, 'end_character': 533, 'bleu_score': 1.0, 'section': 'Section::::In dramatic representations.:2003 stage musical.\n'}]}, {'answer': 'Old Snarl - Spats'}, {'answer': 'Lynessa', 'provenance': [{'wikipedia_id': '933294', 'title': 'Wicked Witch of the West', 'start_paragraph_id': 13, 'start_character': 108, 'end_paragraph_id': 13, 'end_character': 115, 'bleu_score': 1.0, 'section': 'Section::::In other books.\n'}]}]