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 converging evidence implicate the abnormal microRNA system in schizophrenia?
Answer: Collectively, results from all 3 lines of evidence, suggest that the genetically based dysregulation of miRNA systems undermines miRNAs' inhibitory effects, resulting in the abnormal upregulation of genome transcription in the development of SZ.

Ex Output:
yes


Ex Input:
Question: Does switching types of drug-eluting stents prevent repeated in-stent restenosis in patients with coronary drug-eluting stent restenosis?
Answer: A strategy involving repeated DES implantation was superior to POBA for preventing recurrent restenosis. Treatment with a different type or generation of DES does not appear to reduce the incidence of TLR. Moreover, we identified certain useful factors for facilitating appropriate and early triage in the patients with repeated DES ISR.

Ex Output:
no


Ex Input:
Question: Does epidural placement result in an increased incidence of venous thromboembolism in combat-wounded patients?
Answer: Although PCEA catheters were more often placed in patients prone to VTE, there was no difference in incidence of VTE with their use. These data suggest that enoxaparin 40 mg daily in patients with PCEA is not inferior to 30 mg twice daily for VTE prophylaxis in combat-wounded patients.

Ex Output:

no