Definition: 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.
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.


b