Question: how many episodes are there in alias grace
[{'answer': '6', 'provenance': [{'wikipedia_id': '50961538', 'title': 'Alias Grace (miniseries)', 'start_paragraph_id': 1, 'start_character': 131, 'end_paragraph_id': 1, 'end_character': 132, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]