Question: who decides to accompany dorothy as she journeys south in the wonderful wizard of oz
[{'answer': 'Cowardly Lion', 'provenance': [{'wikipedia_id': '54436', 'title': 'The Wonderful Wizard of Oz', 'start_paragraph_id': 11, 'start_character': 243, 'end_paragraph_id': 11, 'end_character': 256, 'bleu_score': 1.0, 'section': 'Section::::Plot.\n'}]}, {'answer': 'Scarecrow', 'provenance': [{'wikipedia_id': '54436', 'title': 'The Wonderful Wizard of Oz', 'start_paragraph_id': 11, 'start_character': 121, 'end_paragraph_id': 11, 'end_character': 130, 'bleu_score': 1.0, 'section': 'Section::::Plot.\n'}]}, {'answer': 'Tin Woodman', 'provenance': [{'wikipedia_id': '54436', 'title': 'The Wonderful Wizard of Oz', 'start_paragraph_id': 11, 'start_character': 218, 'end_paragraph_id': 11, 'end_character': 229, 'bleu_score': 1.0, 'section': 'Section::::Plot.\n'}]}, {'provenance': [{'wikipedia_id': '54436', 'title': 'The Wonderful Wizard of Oz', 'start_paragraph_id': 15, 'start_character': 0, 'end_paragraph_id': 15, 'end_character': 1312, 'bleu_score': 0.7555003413329351, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13207639339626984723}, 'section': 'Section::::Plot.\n'}]}]