Question: how many levels are there in pac man
[{'answer': '256', 'provenance': [{'wikipedia_id': '74255', 'title': 'Pac-Man', 'start_paragraph_id': 10, 'start_character': 17, 'end_paragraph_id': 10, 'end_character': 20, 'bleu_score': 1.0, 'section': 'Section::::Gameplay.:Enemy behavior.\n'}]}]