Question: who plays gretchen's sister in prison break
[{'answer': 'Heather McComb', 'provenance': [{'wikipedia_id': '10066043', 'title': 'List of Prison Break minor characters', 'start_paragraph_id': 176, 'start_character': 35, 'end_paragraph_id': 176, 'end_character': 49, 'bleu_score': 1.0, 'section': 'Section::::Miscellaneous characters.:Other miscellaneous characters.\n'}]}, {'provenance': [{'wikipedia_id': '10066043', 'title': 'List of Prison Break minor characters', 'start_paragraph_id': 176, 'start_character': 0, 'end_paragraph_id': 176, 'end_character': 393, 'bleu_score': 0.9712154609069981, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8864333826510599448}, 'section': 'Section::::Miscellaneous characters.:Other miscellaneous characters.\n'}]}]