Question: which wizard of oz character didn't have a heart
[{'answer': 'the Tin Man', 'provenance': [{'wikipedia_id': '509931', 'title': 'Tin Woodman', 'start_paragraph_id': 1, 'start_character': 31, 'end_paragraph_id': 1, 'end_character': 42, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '509931', 'title': 'Tin Woodman', 'start_paragraph_id': 25, 'start_character': 0, 'end_paragraph_id': 25, 'end_character': 1852, 'bleu_score': 0.994126221360011, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11410060211015357357}, 'section': 'Section::::Depictions on stage and screen.\n'}]}]