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: Is lipoprotein internalisation induced by oncogenic AMPK activation essential to maintain glioblastoma cell growth?
Answer: Our findings demonstrate that AMPK plays a crucial role in glioblastoma cell growth and suggest that blocking lipoprotein receptors could potentially be used as a plausible therapeutic approach for these and other type of tumours with high levels of AMPK.

Ex Output:
yes


Ex Input:
Question: Is early systemic sclerosis : serum profiling of factors involved in endothelial , T-cell , and fibroblast interplay marked by elevated interleukin-33 levels?
Answer: Our study suggests that an endothelial, T-cell and fibroblast activation can be present in patients with early SSc and it is associated with a distinct profile of circulating factors involved in the cross-talk of these cells. The marked increase of IL-33 in early SSc patients suggests new routes of investigation of cell-cell dynamics in target tissues predating overt disease manifestations, thus opening to new therapeutic approaches.

Ex Output:
yes


Ex Input:
Question: Is history of recurrent urinary tract infection predictive of abnormality on voiding cystourethrogram?
Answer: VUR and VCUG abnormality are no more likely when performed after recurrent UTI or for UTI plus other abnormality. This reasons against postponing VCUG until after UTI recurrence, as positive findings are no more likely in this setting.

Ex Output:

no