In this task, you are given a question and an answer. Answer "Yes" if the given answer correctly answers the question, otherwise answer "No".

[EX Q]: who is is the singer westlife, Answer: Westlife were an Irish boy band which formed in 1998 and disbanded in 2012.
[EX A]: Yes

[EX Q]: what is the prognosis of stomach cancer, Answer: Prognosis is poor (5-year survival <5 to 15%) because most patients present with advanced disease.
[EX A]: Yes

[EX Q]: how long was frank sinatra famous, Answer: He was the recipient of eleven Grammy Awards , including the Grammy Trustees Award , Grammy Legend Award and the Grammy Lifetime Achievement Award .
[EX A]:
No

