Question: what is the most common symptom of schizophrenia
[{'answer': 'Deficits in cognitive abilities', 'provenance': [{'wikipedia_id': '27790', 'title': 'Schizophrenia', 'start_paragraph_id': 15, 'start_character': 0, 'end_paragraph_id': 15, 'end_character': 31, 'bleu_score': 1.0, 'section': 'Section::::Signs and symptoms.:Cognitive dysfunction.\n'}]}, {'provenance': [{'wikipedia_id': '27790', 'title': 'Schizophrenia', 'start_paragraph_id': 15, 'start_character': 0, 'end_paragraph_id': 15, 'end_character': 1993, 'bleu_score': 0.869631549019365, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 580904541988111834}, 'section': 'Section::::Signs and symptoms.:Cognitive dysfunction.\n'}]}]