instruction:
Given a passage with a question and an answer to that question, classify if the answer actually answers the question into 'yes' or 'no'. Output 'yes' if the answer answers the question and output 'no' if the answer does not answer the question.
question:
Question: Are front-of-pack symbols a reliable indicator of products with healthier nutrient profiles?
Answer: FOP symbols are being used to market foods that are no more nutritious than foods without this type of marketing. Because FOP symbols may influence consumer perceptions of products and their purchases, it may be a useful public health strategy to set minimum nutritional standards for products using FOP symbol marketing.
answer:
no

question:
Question: Does ginsenoside Rg3 improve erectile function in streptozotocin-induced diabetic rats?
Answer: Oral gavage with Rg3 appears to both prevent degeneration of neurons in the dorsal nerves and exert an antioxidant effect in the corpus cavernosum of rats.
answer:
yes

question:
Question: Are v600E BRAF mutations alternative early molecular events in a subset of KIT/PDGFRA wild-type gastrointestinal stromal tumours?
Answer: BRAF mutations represent an alternative molecular pathway in the early tumorigenesis of a subset of KIT/PDGFRA wild-type GISTs and are per se not associated with a high risk of malignancy. Mutations in KIT, PDGFRA and BRAF were mutually exclusive in this study. Results from this and a previous study indicate that BRAF-mutated GISTs show a predilection for the small bowel (four of five tumours), but this needs further evaluation in larger studies.
answer:
yes