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: What was his first victory of the year? Passage:Race 1 was held on Saturday 10 May. Mark Winterbottom took his second race victory of the year, a surprisingly comfortable win ahead of the HRT pair of Mark Skaife and Garth Tander. Tander was pushed hard by Steven Richards and Craig Lowndes. A collision at race start saw Jason Bright touch Greg Murphy who in turn made contact with Michael Caruso, sending Bright and Caruso out of control towards turn 7, where crossing the track Caruso struck Shane van Gisbergen. The incident triggered a safety car. Jamie Whincup and Will Davison charged through to seventh and eight positions from poor qualifying places. James Courtney was fighting amongst that group but fading rear tyres led Courtney to attempt defensive moves that raised the ire of race control, leading to first the bad sportsmanship flag, then a black flag drive through penalty which dropped him down field.


Ex Output:
a


Ex Input:
Question: How long was Frank Pick the general manager? Passage:Through his involvement with the Design and Industries Association Holden met Frank Pick, general manager of the Underground Electric Railways Company of London (UERL). Holden at the time had no experience in designing for transport, but this would change through his collaboration with Pick. In 1923, Pick commissioned Holden to design a façade for a side entrance at Westminster Underground station. This was followed in 1924 with an appointment to design the UERL's pavilion for the British Empire Exhibition. Also in 1924, Pick commissioned Holden to design seven new stations in south London for the extension of the City and South London Railway (now part of the Northern line) from Clapham Common to Morden. The designs replaced a set by the UERL's own architect, Stanley Heaps, which Pick had found unsatisfactory. The designs reflect the simple modernist style he was using in France for the war cemeteries; double-height ticket halls are clad in plain Portland stone framing a glazed screen, each adapted to suit the street corner sites of most of the stations. The screens feature the Underground roundel made up in coloured glass panels and are divided by stone columns surmounted by capitals formed as a three-dimensional version of the roundel. Holden also advised Heaps on new façades for a number of the existing stations on the line and produced the design for a new entrance at Bond Street station on the Central London Railway.


Ex Output:
a


Ex Input:
Question: Who directed the film that starred Clarine Seymour opposite Richard Barthelmess and Carol Dempster. Passage:In 1918, Seymour met Victor Heerman. Heerman directed a screen test featuring Seymour and one of D.W. Griffith's Artcraft stock company actors Robert Harron. Griffith was pleased with the pairing and with Seymour's knack for light comedy and hired her as member of his stock company. Griffith cast Seymour with Harron, Richard Barthelmess and Carol Dempster in the drama The Girl Who Stayed at Home (1919). Although the film was not well received by critics, Seymour's performance was and the public interest in her began to grow. Later that year, she was paired with Robert Harron again in True Heart Susie (1919) which also featured Lillian Gish. Seymour followed with role in Scarlet Days (1919), also opposite Richard Barthelmess and Carol Dempster. In 1920, Griffith cast Seymour in the lead role in The Idol Dancer. The film was not well received by audiences but they were taken by Seymour's performance. Shortly after the film's release, Seymour was featured on the cover of Motion Picture Magazine.


Ex Output:

b