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 state did Grouplove perform in December before their sold-out headline tour in Australia? Passage:The band released its debut album, Never Trust a Happy Song, on September 13, 2011 through Canvasback/Atlantic Records. They released 4 singles from the album – Colours (which was featured on FIFA 12, albeit as the Captain Cuts remix), "Tongue Tied" (which went on to score the band a no. 1 on the US Alternative Chart and featured in several commercials (including one for Apple, and one for Coca-Cola) and an episode of Fox's Glee) Lovely Cup and Itchin On A Photograph. In support of their debut album, the band went on a headlining North American Fall tour and also performed with Two Door Cinema Club as their main support. In December, the band performed at KROQ Almost Acoustic Christmas, which takes place at the Gibson Amphitheatre, in Universal City. On January 3, 2012 the band kicked off their sold-out headline tour in Australia at the Factory Theatre in Sydney and continued their tour in Europe in February. The band began their US Spring 2012 tour on March 6 in Burlington, VT in support of Young The Giant. Throughout the sold-out headline tour the band had featured stops at Coachella Valley Music and Arts Festival, Sasquatch! Music Festival, and Bonnaroo Music and Arts Festival.


Ex Output:
b


Ex 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.


Ex Output:
a


Ex Input:
Question: Did Sargis Tmogveli survive the capture of the city of Kars? Passage:Shalva was one of the most notable military commanders during a series of expansionist wars waged by the Kingdom of Georgia under Queen Tamar (r. 1184–1213). He consecutively held top posts of mechurchletukhutsesi (Lord High Treasurer) and mandaturtukhutsesi (Lord High Mandator) at Tamar’s court. Together with his brother Ivane, Shalva was in command of vanguard traditionally composed of the Meschian troops from south Georgia. In the battle of Shamkor against the Ildenizid atabeg of Azerbaijan in 1195, he captured a war banner sent by the Caliph to the Muslim army which was then donated to the revered icon of Our Lady of Khakhuli. In 1206/1207, Shalva, together with Sargis Tmogveli, took hold of the city of Kars from the Seljuqs and was appointed as the governor of the Kars county.


Ex Output:

b