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: How many people did the Shah award the medal in 1921? Passage:In early 1920 he commanded a military mission which supervised the withdrawal of Romanian Forces left in Hungary after the Hungarian–Romanian War of 1919, and in the summer was attached to the force occupying İzmit, Turkey, as it prepared to withdraw. His third overseas posting of the year was to Persia in late August, where – among other things – he appointed Reza Khan (after ousting the Russian officer Vsevolod Starosselsky and having his offered position declined by Sardar Homayoun) to command the élite Cossack Brigade; Reza Khan would later seize control of the country, and rule as Shah from 1925 to 1941. The precise level of British involvement in Reza Khan's coup remains a matter of historical debate, but it is almost certain that Ironside himself at least provided advice to the plotters. On his departure from Persia in 1921, the Shah awarded him the Order of the Lion and the Sun.


a