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.

Ex Input:
Question: Does lactobacillus plantarum 299v reduce enteric bacteria or bacterial translocation in patients undergoing colon resection?
Answer: Lactobacillus plantarum 299v was established in the intestine, but no inhibitory effect on enteric bacteria, bacterial translocation, or postoperative complications was found. The mechanism behind the protective effects of probiotics found in animal and some human studies remain elusive and require further explorations. No adverse effects were recorded after the administration of high doses of Lactobacillus plantarum 299v.

Ex Output:
no


Ex Input:
Question: Does overexpression of microRNA-155 suppress chemokine expression induced by Interleukin-13 in BEAS-2B human bronchial epithelial cells?
Answer: miR-155 specifically inhibits IL-13-induced expression of eosinophilic chemokines CCL11 and CCL26 in bronchial epithelial cells, even though the 3'-untranslated region of these genes do not contain a consensus binding site for miR-155.

Ex Output:
yes


Ex Input:
Question: Are multiple-use atomizers in outpatient otolaryngology clinics necessarily an infectious risk?
Answer: Multiple-use atomizers that contain phenylephrine and tetracaine solutions with bacteriostatic preservatives in an outpatient otolaryngology clinic do not yield significant bacterial growth and, when used as described, do not pose an infectious risk of bacterial transmission between patients.

Ex Output:

no