Question: the most intense roller coaster in the world
[{'answer': 'Formula Rossa', 'provenance': [{'wikipedia_id': '2533444', 'title': 'List of roller coaster rankings', 'start_paragraph_id': 2, 'start_character': 561, 'end_paragraph_id': 2, 'end_character': 574, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]