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.

[Q]: Question: Does pTEN loss in biopsy tissue predict poor clinical outcomes in prostate cancer?
Answer: PTEN loss at the time of biopsy seems to predict time to development of metastasis, prostate cancer-specific mortality and, for the first time, castration-resistant prostate cancer and response to androgen deprivation therapy after radical prostatectomy. If confirmed by larger studies, this would support the use of PTEN loss as an early marker of aggressive prostate cancer.
[A]: yes

[Q]: Question: Does health-related quality of life differ between short-term , long-term and very long-term cancer survivors in the Swedish general population?
Answer: Although HRQL was similar between short-term, long-term and very long-term survivors, when compared with the background population, findings suggest that some functional impairments and symptoms are present even at 5-10 YSD.
[A]: no

[Q]: Question: Is b-type natriuretic peptide a volume marker among patients on hemodialysis?
Answer: Taken together, these data suggest that among hypertensive patients on hemodialysis BNP is not a volume marker.
[A]:
no