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: Consider Input: Question: Does alirocumab , a Therapeutic Human Antibody to PCSK9 , Affect CD81 Levels or Hepatitis C Virus Entry and Replication into Hepatocytes?
Answer: These results suggest that inhibition of PCSK9 with alirocumab has no effect on CD81 and does not result in increased susceptibility to HCV entry.

Output: no

Input: Consider Input: Question: Is nuchal cord associated with adverse perinatal outcome?
Answer: Nuchal cord is not associated with adverse perinatal outcome. Thus, labor induction in such cases is probably unnecessary.

Output: no

Input: Consider Input: Question: Does margaritaria discoidea ( Euphorbiaceae ) stem bark extract attenuate allergy and Freund 's adjuvant-induced arthritis in rodents?
Answer: Margaritaria discoidea suppresses allergy and exhibits anti-inflammatory activity in mice. In addition it attenuates Freund's adjuvant-induced arthritis through a reduction in serum levels of TNF and IL-6 in rats.
Output: yes