Question: how many episodes are in season 2 of lucifer
[{'answer': '18', 'provenance': [{'wikipedia_id': '49224270', 'title': 'List of Lucifer episodes', 'start_paragraph_id': 2, 'start_character': 9, 'end_paragraph_id': 2, 'end_character': 11, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]