Question: who played mel gibson's wife in signs
[{'answer': 'Patricia Kalember', 'provenance': [{'wikipedia_id': '72453', 'title': 'Signs (film)', 'start_paragraph_id': 16, 'start_character': 12, 'end_paragraph_id': 16, 'end_character': 29, 'bleu_score': 1.0, 'section': 'Section::::Cast.\n'}]}, {'provenance': [{'wikipedia_id': '72453', 'title': 'Signs (film)', 'start_paragraph_id': 16, 'start_character': 0, 'end_paragraph_id': 16, 'end_character': 170, 'bleu_score': 0.650174989812983, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 13129982583594443080}, 'section': 'Section::::Cast.\n'}]}]