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 a null mutation in ANGPTL8 associate with either plasma glucose or type 2 diabetes in humans?
Answer: Disruption of ANGPTL8 function in humans does not seem to have a large effect on measures of glucose tolerance.

A: no
****
Q: 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.

A: yes
****
Q: Question: Is leg extension power a pre-disaster modifiable risk factor for post-traumatic stress disorder among survivors of the Great East Japan Earthquake : a retrospective cohort study?
Answer: Leg extension power is a potentially modifiable pre-disaster risk factor among men for attenuating the severity of PTSD symptoms associated with great disasters such as the Great East Japan Earthquake among men.

A:
yes
****