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.

Example Input: Question: Who is the mayor of the town Archer was born in? Passage:Born in Densmore, Kansas, Archer moved to Topeka, Kansas where he attended public high school. Archer received a Bachelor of Arts degree in English literature from Yale University in 1952 and a Juris Doctor, with honors, from George Washington University Law School in 1954. He served as a First Lieutenant in the Judge Advocate General's Office of the United States Air Force from 1954 to 1956. He entered private practice in Washington, D.C., as an associate in the law firm of Hamel, Park, McCabe and Saunders from 1956 to 1960 and a partner from 1960 to 1981. Archer served as Assistant Attorney General in charge of the United States Department of Justice Tax Division from 1982 to 1984.

Example Output: a

Example Input: Question: How many years did the person who possibly encouraged Eumenes to revolt reign? Passage:Although nominally under Seleucid control, Pergamon under Philetaerus enjoyed considerable autonomy. However, upon his succession, Eumenes, perhaps with the encouragement of Ptolemy II, who was at war with the Seleucids, revolted, defeating the Seleucid king Antiochus I near the Lydian capital of Sardis in 261 BC. He was thus able to free Pergamon, and greatly increase the territories under his control. In his new possessions, he established garrison posts in the north at the foot of Mount Ida called Philetaireia after his adoptive father, and in the east, northeast of Thyatira near the sources of the river Lycus, called Attaleia after his grandfather, and he extended his control south of the river Caïcus to the Gulf of Cyme as well. Demonstrating his independence, he began to strike coins with the portrait of Philetaerus, while his predecessor had still depicted Seleucus I Nicator.

Example Output: b

Example Input: Question: Was Sum 41's single Fat Lip released as a single? Passage:A number of 1970s punk rock and 1980s hardcore punk songs refer to inhalant use. The Ramones, an influential early US punk band, referred to inhalant use in several of their songs. The song "Now I Wanna Sniff Some Glue" describes adolescent boredom, and the song "Carbona not Glue" states, "My brain is stuck from shooting glue." An influential punk fanzine about the subculture and music took its name (Sniffin' Glue) from the Ramones song. The 1980s punk band The Dead Milkmen wrote a song, "Life is Shit" from their album Beelzebubba, about two friends hallucinating after sniffing glue. Punk-band-turned-hip-hop group the Beastie Boys penned a song "Hold it Now – Hit It", which includes the line "cause I'm beer drinkin, breath stinkin, sniffing glue." Pop punk band Sum 41 wrote a song, "Fat Lip", which refers to a character who does not "make sense from all the gas you be huffing..." The song Lança-perfume, written and performed by Brazilian popstar Rita Lee, became a national hit in 1980. The song is about chloroethane and its widespread recreational sale and use during the rise of Brazil's carnivals.

Example Output:
b