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: In what year did the Nordic Passport Union begin? Passage:A legal purge took place in Norway after WWII in which 53,000 people were sentenced for treason and 25 were executed. The post-war years saw an increased interest in Scandinavism, resulting in Scandinavian Airlines System in 1946, the Nordic Council in 1952 and the Nordic Passport Union along with the metric system being introduced. Reconstruction after the war gave Norway the highest economic growth in Europe until 1950, partly created through rationing private consumption allowing for higher industrial investments. The Labor Party retained power throughout the period and maintained a policy of public planning. The University of Bergen was created in 1946. The 1950s saw a boom in construction of hydroelectricity and the state built the steel mill Norsk Jernverk and two aluminum works. State banks such as the State Housing Bank, the State Educational Loan Fund and Postbanken allowed for governmental control over private debt. Oslo hosted the 1952 Winter Olympics.


b