Question: how many seasons are there for the blacklist
[{'answer': '5', 'provenance': [{'wikipedia_id': '38962787', 'title': 'The Blacklist (TV series)', 'start_paragraph_id': 20, 'start_character': 304, 'end_paragraph_id': 20, 'end_character': 305, 'bleu_score': 1.0, 'section': 'Section::::Production.:Development.\n'}]}]