Question: who played melinda gordon's mother on ghost whisperer
[{'answer': 'Anne Archer', 'provenance': [{'wikipedia_id': '17221892', 'title': 'List of Ghost Whisperer characters', 'start_paragraph_id': 44, 'start_character': 26, 'end_paragraph_id': 44, 'end_character': 37, 'bleu_score': 1.0, 'section': 'Section::::Supporting characters.:Beth Gordon.\n'}]}, {'provenance': [{'wikipedia_id': '17221892', 'title': 'List of Ghost Whisperer characters', 'start_paragraph_id': 44, 'start_character': 0, 'end_paragraph_id': 44, 'end_character': 825, 'bleu_score': 0.9866213202385071, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2642091802184166063}, 'section': 'Section::::Supporting characters.:Beth Gordon.\n'}]}]