Question: top of the lake series 2 how many episodes
[{'answer': '6', 'provenance': [{'wikipedia_id': '38866302', 'title': 'Top of the Lake', 'start_paragraph_id': 75, 'start_character': 277, 'end_paragraph_id': 75, 'end_character': 278, 'bleu_score': 1.0, 'section': 'Section::::Release.\n'}]}]