Question: who plays kate pearson's mom on this is us
[{'answer': 'Mandy Moore', 'provenance': [{'wikipedia_id': '52995471', 'title': 'List of This Is Us characters', 'start_paragraph_id': 1, 'start_character': 157, 'end_paragraph_id': 1, 'end_character': 168, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]