Question: who came up with the joke why did the chicken cross the road
[{'answer': 'The Knickerbocker', 'provenance': [{'wikipedia_id': '171635', 'title': 'Why did the chicken cross the road?', 'start_paragraph_id': 3, 'start_character': 43, 'end_paragraph_id': 3, 'end_character': 60, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '171635', 'title': 'Why did the chicken cross the road?', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 95, 'bleu_score': 0.8781879837907131, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18037879911031650417}, 'section': 'Section::::History.\n'}]}]