Question: how many episodes of the pjs are there
[{'answer': '44', 'provenance': [{'wikipedia_id': '2409111', 'title': 'The PJs', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 2, 'bleu_score': 1.0, 'section': 'Section::::Summary.\n'}]}]