Question: what is p s ratio in stock market
[{'answer': 'Price -- sales ratio'}, {'provenance': [{'wikipedia_id': '1661038', 'title': 'Price–sales ratio', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 331, 'bleu_score': 0.8812636382525271, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3665856234954850827}, 'section': 'Section::::Abstract.'}]}]