Question: how many episodes of top of the lake china girl
[{'answer': '12', 'provenance': [{'wikipedia_id': '38866302', 'title': 'Top of the Lake', 'start_paragraph_id': 2, 'start_character': 126, 'end_paragraph_id': 2, 'end_character': 128, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]