Question: who does laura dern play in big little lies
[{'answer': 'Renata Klein', 'provenance': [{'wikipedia_id': '46649377', 'title': 'Big Little Lies (TV series)', 'start_paragraph_id': 14, 'start_character': 26, 'end_paragraph_id': 14, 'end_character': 38, 'bleu_score': 1.0, 'section': 'Section::::Cast and characters.:Main.\n'}]}, {'provenance': [{'wikipedia_id': '46649377', 'title': 'Big Little Lies (TV series)', 'start_paragraph_id': 14, 'start_character': 0, 'end_paragraph_id': 14, 'end_character': 38, 'bleu_score': 0.6147881529512641, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16893685290625973445}, 'section': 'Section::::Cast and characters.:Main.\n'}]}]