Question: who is the tin man in wizard of oz
[{'answer': 'Jack Haley', 'provenance': [{'wikipedia_id': '509931', 'title': 'Tin Woodman', 'start_paragraph_id': 25, 'start_character': 89, 'end_paragraph_id': 25, 'end_character': 99, 'bleu_score': 1.0, 'section': 'Section::::Depictions on stage and screen.\n'}]}]