Question: how many seasons of schitt creek are there
[{'answer': 'fourth', 'provenance': [{'wikipedia_id': '42424137', 'title': "Schitt's Creek", 'start_paragraph_id': 49, 'start_character': 324, 'end_paragraph_id': 49, 'end_character': 330, 'bleu_score': 1.0, 'section': 'Section::::Reception.:Critical response.\n'}]}]