Question: how many episodes in season 2 of preacher
[{'answer': '13', 'provenance': [{'wikipedia_id': '45714153', 'title': 'Preacher (TV series)', 'start_paragraph_id': 44, 'start_character': 18, 'end_paragraph_id': 44, 'end_character': 20, 'bleu_score': 1.0, 'section': 'Section::::Production.:Development.\n'}]}]