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: How many miles from Chattanooga, Tennessee does it take to travel to Lookout Mountain by railway? Passage:The Lookout Mountain Incline Railway is a inclined plane funicular railway leading to the top of Lookout Mountain from the historic St. Elmo neighborhood of Chattanooga, Tennessee. Passengers are transported from St. Elmo's Station at the base, to Point Park at the mountain summit, which overlooks the city and the Tennessee River. It is just a short drive to three of Chattanooga's main tourist attractions, Ruby Falls, Cavern Castle, and Rock City. The railway is approximately in length (single-track except for a short two-track passing loop at the midway point, allowing operation of two cars at one time). It has a maximum grade of 72.7%, making it one of the world's steepest passenger railways. It obtained Historic Mechanical Engineering Landmark status in 1991. The cable system for the cars was made by the Otis Elevator Company.

Ex Output:
a

Ex Input:
Question: How many children did the Dutch naturalist have? Passage:The yellow-wattled lapwing was described by the French polymath Georges-Louis Leclerc, Comte de Buffon in his Histoire Naturelle des Oiseaux in 1781. The bird was also illustrated in a hand-coloured plate engraved by Francois-Nicolas Martinet in the Planches Enluminees D'Histoire Naturelle. This plate was produced under the supervision of Edme-Louis Daubenton to accompany Buffon's text. Neither the plate caption nor Buffon's description included a scientific name but in 1783 the Dutch naturalist Pieter Boddaert coined the binomial name Charadrius malabaricus in his catalogue of the Planches Enluminees. The type locality is the Malabar Coast in southwest India. The current genus Vanellus was erected by the French zoologist Mathurin Jacques Brisson in 1760. Vanellus is the Medieval Latin for a "lapwing". It is a diminutive of the Latin vanus meaning "winnowing" or "fan". The species is monotypic.

Ex Output:
a