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: Is pseudomonas aeruginosa in CF and non-CF homes found predominantly in drains?
Answer: These findings implicate drains as important potential sources of P. aeruginosa infection. They suggest that maximizing P. aeruginosa control efforts for drains would reduce exposure with minimal extra burden to CF patients and families.
yes

Question: Is the relationship between insomnia with short sleep duration associated with hypercholesterolemia : a cross-sectional study?
Answer: Insomnia with short sleep duration was associated with increased odds of hypercholesterolemia. Caregivers in clinical practice should watch out for the effect brought by this novel factor.
yes

Question: Do [ Angiogenesis and density of dendritic cells correlate with metachronous distant metastases after curative surgery of rectal carcinoma ]?
Answer: Angiogenesis and density of dendritic cells in rectal cancer are not prognostic factors for metachronous distant metastasis and, therefore, cannot serve as selection parameters for adjuvant therapy.
no