Question: how many episodes of season 1 of big little lies
[{'answer': '7', 'provenance': [{'wikipedia_id': '46649377', 'title': 'Big Little Lies (TV series)', 'start_paragraph_id': 1, 'start_character': 177, 'end_paragraph_id': 1, 'end_character': 178, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]