Question: who is nick's sister in big mouth
[{'answer': 'Leah', 'provenance': [{'wikipedia_id': '50798680', 'title': 'Big Mouth (TV series)', 'start_paragraph_id': 7, 'start_character': 162, 'end_paragraph_id': 7, 'end_character': 166, 'bleu_score': 1.0, 'section': 'Section::::Cast and characters.:Main.\n'}]}, {'provenance': [{'wikipedia_id': '50798680', 'title': 'Big Mouth (TV series)', 'start_paragraph_id': 7, 'start_character': 0, 'end_paragraph_id': 7, 'end_character': 166, 'bleu_score': 0.9243880458347601, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 15425624227939984975}, 'section': 'Section::::Cast and characters.:Main.\n'}]}]