Question: who played the wicked witch in wicked on broadway
[{'answer': 'Rachel Kelly Tucker', 'provenance': [{'wikipedia_id': '17337367', 'title': 'Rachel Tucker', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 19, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '17337367', 'title': 'Rachel Tucker', 'start_paragraph_id': 14, 'start_character': 0, 'end_paragraph_id': 14, 'end_character': 638, 'bleu_score': 0.9815648442794911, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3109821126256915655}, 'section': 'Section::::West End and Broadway stardom.:"Wicked".\n'}]}, {'provenance': [{'wikipedia_id': '17337367', 'title': 'Rachel Tucker', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3109821126256915655}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '17337367', 'title': 'Rachel Tucker', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['Rachel Kelly Tucker (born 29 May 1981) is a Northern Irish West End and Broadway performer, best known for her portrayal of Elphaba in the hit musical "Wicked". She has also starred in various other musicals and plays, including one alongside Sting ("The Last Ship").', 'Rachel Kelly Tucker (born 29 May 1981) is a Northern Irish West End and Broadway performer, best known for her portrayal of Elphaba in the hit musical "Wicked', 'Rachel Kelly Tucker (born 29 May 1981) is a Northern Irish West End and Broadway performer, best known for her portrayal of Elphaba in the hit musical "Wicked". She has also starred in various other musicals and plays, including one alongside Sting ("The Last Ship")']}}]}]