Instructions: 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.
Input: Question: Is altered perineal microbiome associated with vulvovaginitis and urinary tract infection in preadolescent girls?
Answer: Vulvovaginitis may cause UTIs by altering the perineal biome such that there is increased colonization of uropathogens.
Output:
yes