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: Who were the first commander of the regiment Erwin served in during the American Civil War? Passage:Born in Washington, Lycoming County, Pennsylvania, Erwin settled in Portage, Wisconsin in 1853. From 1855 to 1868, Erwin lived in Jo Daviess County, Illinois and then in Stephenson County, Illinois. During the American Civil War, Erwin served in the 45th Illinois Volunteer Infantry Regiment. In 1868, Erwin moved to Tomah, Wisconsin and was in the mercantile business. From 1879 to 1882 and 1886, Erwin served on the Tomah Board of Education and was president of the school board. From 1882 to 1889, Erwin served in the Wisconsin State Senate and was a Republican. In 1889, Erwin served as postmaster for Tomah, Wisconsin. In 1902, Erwin moved with his family to Milwaukee, Wisconsin. Erwin died suddenly in Savanna, Illinois just as he was about get on a train for a trip to Omaha, Nebraska.


Ex Output:
b


Ex Input:
Question: What other commercials did Rupert Sanders direct the year he directed The Life? Passage:The Life, also known as We Are ODST is a television and cinema advertisement launched in 2009 by Microsoft to promote the first person shooter  in the United States. The 150-second piece follows a young soldier through enlistment, training, and battle as an Orbital Drop Shock Trooper (ODST), analogous to a paratrooper that drops from space to a battlefield. The Life was created by advertising agency T.A.G., an offshoot of McCann Erickson. Production of the commercial itself was handled by production company Morton/Jankel/Zander (MJZ). It was directed by Rupert Sanders, and post-production was conducted by Asylum. It was filmed in Hungary, just outside Budapest in a coal mine and abandoned factories to give the sequence an "Eastern Bloc" aesthetic. The commercial and its associated campaign proved hugely successful; on the week of its launch, Halo 3: ODST became the top-selling game for the Xbox 360 worldwide, and over 2.5 million copies were sold within the first few weeks of release. The Life went on to win a number of honours from the advertising and entertainment industries, including two Clio Awards, a London International Advertising Award and several honours from the Cannes Lions International Advertising Festival, the most prestigious awards ceremony in the advertising industry.


Ex Output:
a


Ex Input:
Question: How many children did the person who lived in Alexandria, VA have? Passage:NOVA Parks manages a number of parks that have historical significance, including an 18th-century mansion, a Civil War battlefield, a 19th-century grist mill, a 200-year-old working farm, a Civil War era church, and many more. Major venues include Carlyle House, the former Alexandria, Virginia home of British merchant John Carlyle; Ball's Bluff Battlefield and National Cemetery, a park in Leesburg, VA that was the site of a Civil War conflict in 1861; Mt. Zion Church and the adjacent Gilbert’s Corner Regional Park, in Aldie, VA which were used as a Civil War military rendezvous site, prison, barracks, battleground and hospital; and Aldie Mill Historic Park, a restored mill, with a four-story brick structure with tandem metal Water wheels. Other venues include a kiln used by female prisoners from the Lorton Reformatory during the Women's suffrage Movement, as well Temple Hall Farm and White’s Ford Regional Park, located on the farm formerly owned by Elijah V. White.


Ex Output:

b