Definition: In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as `a` for Yes or `b` for No.
Input: Question: Who was the Prime Minister after Shaukat Aziz? Passage:Shaukat Aziz (; born 6 March 1949) is a Pakistani economist and financier who served as 17th Prime Minister of Pakistan from 20 August 2004 to 15 November 2007, as well as the Finance Minister of Pakistan from 6 November 1999 to 15 November 2007. During his childhood he studied at St Patrick's High School, Karachi. Aziz graduated from the Institute of Business Administration in Karachi, and joined the corporate staff of the CitiBank Pakistan in 1969. He served in various countries' governments as CitiBank financier, and became executive vice-president of Citibank in 1999. After accepting a personal request by General Pervez Musharraf, Aziz returned to Pakistan from the United States to assume the charge of the Finance Ministry as its finance minister while taking control of the country's economy. In 2004, Aziz was nominated by the Musharaf loyalist government led by Pakistan Muslim League (Q), to the position of Prime Minister after the resignation of Zafarullah Khan Jamali on 6 June 2004.


a