Question: who was the voice of sally in a charlie brown christmas
[{'answer': 'Kathy Steinberg', 'provenance': [{'wikipedia_id': '730781', 'title': 'Sally Brown', 'start_paragraph_id': 1, 'start_character': 220, 'end_paragraph_id': 1, 'end_character': 235, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '730781', 'title': 'Sally Brown', 'start_paragraph_id': 29, 'start_character': 0, 'end_paragraph_id': 29, 'end_character': 595, 'bleu_score': 0.9802931511945101, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12903767605400333260}, 'section': 'Section::::Portrayals.\n'}]}]