Question: how many roller coasters at six flags new jersey
[{'answer': '14', 'provenance': [{'wikipedia_id': '250296', 'title': 'Six Flags Great Adventure', 'start_paragraph_id': 44, 'start_character': 77, 'end_paragraph_id': 44, 'end_character': 79, 'bleu_score': 1.0, 'section': 'Section::::History.:Weber/Anderson era (2010–present).\n'}]}]