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.

Example Input: Question: How long did the battle where George was appointed colonel for last? Passage:Randall enlisted as a private in the 4th Pennsylvania Volunteer Infantry in the April 1861. He then accepted appointment to the 4th U.S. Infantry as second lieutenant in October. He served in New York and Washington, D.C., and in the field with the Army of the Potomac. He was a second lieutenant at the Siege of Yorktown, Battle of Gaines' Mill, Battle of Malvern Hill, Second Bull Run (where he commanded Company C), and Fredericksburg; and a first lieutenant at the Battle of the Wilderness. He was appointed a brevet captain for gallant service in the Battle of Antietam. He served as a major in the 14th New York Heavy Artillery Regiment, part of Major General Ambrose Burnside's IX Corps on the Richmond-Petersburg Front in 1864, and was commander of the regiment at the Battle of the Crater. The Dansville Advertiser reported on 7 September that he assumed command of the regiment on 18 August. This article also reports that he was wounded in the battle on 19 August. He was appointed a brevet lieutenant colonel, and then colonel for gallantry in the Battle of Fort Stedman. He mustered out of the Volunteer service on 26 August, and was appointed captain in the 4th US Infantry on 23 September 1865. Subsequently, he served at Davids' Island Military Reservation, New York Harbor, where he was in December 1867.

Example Output: b

Example Input: Question: Who was older the year Dane appeared on Jackie Gleason's show, Otis Spann or Willie Dixon? Passage:By 1959, Louis Armstrong had asked Time magazine readers: "Did you get that chick? She's a gasser!" and invited her to appear with him on national television. She appeared with Armstrong on the Timex All-Star Jazz Show hosted by Jackie Gleason on January 7, 1959. She toured the East Coast with Jack Teagarden, appeared in Chicago with Art Hodes, Roosevelt Sykes, Little Brother Montgomery, Memphis Slim, Otis Spann, Willie Dixon and others, played New York with Wilbur De Paris and his band, and appeared on The Tonight Show Starring Johnny Carson as a solo guest artist. Other national TV work included The Steve Allen Show, Bobby Troup's Stars of Jazz, and Alfred Hitchcock Presents. In 1961, the singer opened her own club, Sugar Hill: Home of the Blues, on San Francisco's Broadway in the North Beach district, with the idea of creating a venue for the blues in a tourist district where a wider audience could hear it. There Dane performed regularly with her two most constant musical companions: Kenny "Good News" Whitson on piano and cornet and Wellman Braud, former Ellington bassist.

Example Output: b

Example Input: Question: Did Schaeffer write any other Marvel comics as head writer? Passage:With the September 2018 report of the limited series, one was expected to follow Elizabeth Olsen's Wanda Maximoff / Scarlet Witch. By the end of October, Paul Bettany's Vision was expected to play a large role in the series, which would focus on their relationship. Jac Schaeffer was hired to write the first episode and serve as head writer in January 2019. The series was officially announced and titled in April 2019, with Olsen and Bettany confirmed to be starring. Filming started in November 2019. Teyonah Parris will appear as an adult version of Monica Rambeau. The character was previously portrayed by Akira Akbar, as a child in Captain Marvel (2019). The plot takes place following Avengers: Endgame and leads into Doctor Strange in the Multiverse of Madness (also featuring Wanda) while exploring where the character's alias Scarlet Witch comes from. WandaVision is set to debut in early 2021. At D23, Randall Park and Kat Dennings were announced to reprise their MCU roles as Jimmy Woo and Darcy Lewis in the series. Kathryn Hahn was also cast in an undisclosed role described as "a nosy neighbor". Matt Shakman was announced as the series' director.

Example Output:
b