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.

Example Input: Question: Do the Histologic Classifications of Lung Adenocarcinomas Are Discriminable by Unique Lineage Backgrounds?
Answer: For the first time, we showed the unique lineage backgrounds of different histologic subtypes and oncogenic mutations. Assessing this added parameter might be beneficial in discriminating intertumor heterogeneity, advancing target exploration, developing theranostic/prognostic biomarkers, and designing clinical trials.
Example Output: yes

Example Input: Question: Does hepatic HMOX1 expression positively correlate with Bach-1 and miR-122 in patients with HCV mono and HIV/HCV coinfection?
Answer: HMOX1 and miR-122 play an important role in the pathogenesis of CHC in HCV mono-and HIV/HCV co-infected patients. Reduced expression of HMOX1 in patients with HIV/HCV co-infection may indicate a worse prognosis in this group. Our results do not support the importance of Bach-1 in repression of HMOX1 in patients with chronic hepatitis C.
Example Output: yes

Example Input: Question: Is gleason underestimation predicted by prostate biopsy core length?
Answer: While core length on trans-rectal biopsy independently affects Gleason upgrading on RP specimens, performer experience has minor impact on Gleason discordance or biopsy positivity due to a sharp learning curve.
Example Output:
yes