Question: who was the guy at the end of three buckets
[{'answer': 'Uncle Gumbald', 'provenance': [{'wikipedia_id': '51138662', 'title': 'Adventure Time (season 9)', 'start_paragraph_id': 15, 'start_character': 1203, 'end_paragraph_id': 15, 'end_character': 1216, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}]