Question: what entertainment ride was introduced at the world’s columbian exhibition
[{'answer': 'Ferris Wheel', 'provenance': [{'wikipedia_id': '41960', 'title': "World's Columbian Exposition", 'start_paragraph_id': 19, 'start_character': 52, 'end_paragraph_id': 19, 'end_character': 64, 'bleu_score': 1.0, 'section': 'Section::::Attractions.\n'}]}, {'provenance': [{'wikipedia_id': '41960', 'title': "World's Columbian Exposition", 'start_paragraph_id': 19, 'start_character': 0, 'end_paragraph_id': 19, 'end_character': 574, 'bleu_score': 0.8835151017244781, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 18196516240791395754}, 'section': 'Section::::Attractions.\n'}]}]