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.

Ex Input:
Question: Which city is the largest  -  the city near junction K, or the city near junction A? Passage:Belgrade marshalling yard () or Makiš railway station (), or Makiš freight station, is a classification yard of the Belgrade railway junction and the largest railway station in Serbia. It is located in the neighbourhood of Makiš in Čukarica of Belgrade. The railroad continues to Ostružnica in one line via park A, in the other direction to Ostružnica via park B, in third direction to Resnik via junction B near Železnik and junction K of Belgrade railway junction near Petlovo Brdo, in fourth direction to Resnik via junction R in the tunnel below Vidikovac and junction A near Kneževac, in the fifth direction to Rakovica via park B and junction R, in the sixth direction to Rakovica via park A and junction T, in the seventh direction to Rakovica via park B and junction T per second line and the eight towards direction to Jajinci. Belgrade marshalling yard consists of 120 railway tracks.


Ex Output:
a


Ex Input:
Question: Where did the scientist Nash completed his postdoctoral research with attend college? Passage:Born in Exeter, England, and grew up in Sudbury, Ontario, Canada. In high school he competed in the Canada-Wide Science Fair in five successive years (1983–87), winning awards on each occasion and becoming one of the most highly awarded science fair participants in the history of the fair. In recognition of this he was selected to represent Canada as one of two youth delegates to the 1985 Nobel Prize lectures and ceremony in Stockholm, Sweden as part of the Stockholm International Youth Science Seminar and was awarded the International Youth Year Ontario Gold Medal. He received a BSc with honours in biochemistry from the University of Guelph, and the Chemical Institute of Canada prize for the top of class. He received a PhD in 1999 from the University of Alberta working in the laboratory of Dr. Grant McFadden investigating poxviral immunomodulatory proteins. His doctoral thesis focused on the enzymology and biological properties of the Myxoma virus encoded serine proteinase inhibitor (serpin), SERP-1. He completed postdoctoral research with Anthony Pawson at the Samuel Lunenfeld Research Institute of Mount Sinai Hospital and the University of Toronto from June 1999 to December 2003. In 2014, Nash received an MBA with a concentration in finance awarded with high honors from the University of Chicago Booth School of Business.


Ex Output:
b


Ex Input:
Question: Did Daddario and Upton play the same role in the Layover? Passage:In 2016, the actress had a supporting role in the Nicholas Sparks romantic drama film The Choice, directed by Ross Katz. Daddario subsequently starred as one of the leads in the film adaptation of Baywatch (2017), reuniting with her San Andreas co-star Dwayne Johnson. She played Summer Quinn, who was portrayed by Nicole Eggert in the original television series. That same year, Daddario portrayed Kate Jeffries, alongside Kate Upton, in the road trip comedy The Layover (2017), directed by William H. Macy. In 2018, Daddario appeared in the music video "Wait" by Maroon 5 and starred as Avery Martin in the romantic comedy When We First Met, opposite the film's co-writer Adam DeVine. Daddario also appeared as a Scuba Diver in Rampage directed by Brad Peyton but was cut in the final film. Daddario starred as Constance Blackwood in We Have Always Lived in the Castle, a Stacie Passon-directed film adaptation of Shirley Jackson's mystery thriller novel of the same name. Daddario has been cast alongside Henry Cavill and Sir Ben Kingsley in the psychological thriller Night Hunter (originally titled Nomis), and is also headlining the drama-thriller film Lost Girls and Love Hotels. Daddario starred in and acted as executive producer for the romantic comedy Can You Keep a Secret?, based on the novel of the same name by Sophie Kinsella, and will be appearing in the film Happy Life.


Ex Output:

b