Question: how many episodes in season 1 of billions
[{'answer': '12', 'provenance': [{'wikipedia_id': '46814775', 'title': 'Billions (TV series)', 'start_paragraph_id': 57, 'start_character': 56, 'end_paragraph_id': 57, 'end_character': 58, 'bleu_score': 1.0, 'section': 'Section::::Production.:Development.\n'}]}]