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: Consider Input: Question: Of the first two post-doc positions John Ellis held, which company did he work for the longest? Passage:After completing his secondary education at Highgate School, he attended King's College, Cambridge, earning his PhD in theoretical (high-energy) particle physics in 1971. After brief post-doc positions at SLAC and Caltech, he went to CERN and has held an indefinite contract there since 1978. He was awarded the Maxwell Medal and the Paul Dirac Prize by the Institute of Physics in 1982 and 2005 respectively, and is an Elected Fellow of the Royal Society of London since 1985 and of the Institute of Physics since 1991. He was awarded an Honorary Doctorate from the University of Southampton, and twice won the First Award in the Gravity Research Foundation essay competition (in 1999 and 2005). He is also Honorary Doctor at Uppsala University.


Output: a


Input: Consider Input: Question: How many career goals does the player who Anaheim traded to get Gernat have? Passage:Gernát was drafted in the fifth round, 122nd overall, by the Edmonton Oilers in the 2011 NHL Entry Draft. After his draft selection, he would spend two seasons in the junior Western Hockey League with the Edmonton Oil Kings before signing a three-year entry level contract with the Oilers on April 20, 2013. He spent the next three seasons playing in the American Hockey League for the Oklahoma City Barons and the Bakersfield Condors before he was traded to the Anaheim Ducks on February 29, 2016 for Patrick Maroon. He would play just five games for the Ducks' AHL affiliate the San Diego Gulls before signing for HC Sparta Praha for the 2016-17 season. Gernát broke his contract with Sparta Praha in July 2017.


Output: b


Input: Consider Input: Question: Of the wrestlers who attended or wanted to attend the Killer Kowalski Memorial Show has won the most championships in their careers? Passage:Among those in attendance included Richard Byrne, James J. Dillon and Kowalski's former tag team partner Ox Baker, who each delivered speeches during the 30-minute opening ceremony, as was Walter's widow Theresa who performed a song entitled "When Polish Hearts Are Smiling" (sung to the tune of the Irish folksong When Irish Eyes Are Smiling). Also scheduled to appear were Nikolai Volkoff and Tito Santana, however, both were later forced to cancel at the last minute with Santana suffering from strep throat. A number of wrestlers from Total Nonstop Action Wrestling and World Wrestling Entertainment, as well from the Northeastern independent circuit, were also present at the event to pay their respects as many of the attendees were either taught or mentored by Kowalski at some point in their career. A few wrestlers who had wanted to be at the show, most notably Hunter Hearst Helmsley, were unable to do so due to WWE holding a pay-per-view, Cyber Sunday, in Phoenix, Arizona that same night. Eight professional wrestling matches were featured on the event's card, with three including championships.



Output: b