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: Consider Input: Question: When was the house that was later converted into a public library built? Passage:The George S. Houston Historic District is a historic district in Athens, Alabama. The district lies to the west and north of the public square, and features homes of some of the town's most prominent residents. Development began in the district soon after the town was founded in 1818; there are five homes remaining from the antebellum period. The district saw moderate growth between the Civil War and the early 1900s, most of which are Queen Anne and Victorian styles. The majority of houses in the district were constructed between 1908 and 1939. As the need for housing in the town grew, larger antebellum lots were subdivided and new construction was added. Larger houses tended to be American Foursquares, while middle-class houses were bungalows and cottages, some with Tudor Revival and Colonial Revival details. The district is entirely residential, with the exception of the First Methodist Church, built in 1925 in Neoclassical style; 400 North Jefferson was built in 1935 as a hospital, but later converted to apartments. Other notable properties in the district include the George S. Houston House, which was converted into a public library. The district was listed on the National Register of Historic Places in 1989.


Output: b


Input: Consider Input: Question: When was the Great Fire of London?
 Passage:Bermondsey was historically a rural parish on the outskirts of London until the 17th century when the area began to be developed as a wealthy suburb following the Great Fire of London. By the 19th century, the once affluent parts of Bermondsey had experienced a serious decline, and became the site of notorious slums with the arrival of industrialisation, docks and migrant housing, especially along the riverside. The most notorious of the slums was known as Jacob's Island, with the boundary approximately the confluence of the Thames and subterranean River Neckinger, at St Saviour's Dock across from Shad Thames, to the west, a tidal ditch just west of George Row to the east, and another tidal ditch just north of London Street (now Wolseley Street) to the south. It was a particularly squalid rookery, and described as "The very capital of cholera" and "The Venice of drains" by The Morning Chronicle in 1849.


Output: b


Input: Consider Input: Question: Was Marine Cano the starter for the Fort Lauderdale Strikers in 1978? Passage:In 1976, Cano signed with the Los Angeles Skyhawks of the American Soccer League. There, he was the backup to Brian Parkinson and helped the Skyhawks to the ASL championship title. In 1978, he moved to the Fort Lauderdale Strikers of the North American Soccer League. In 1979, he returned to the ASL with the California Sunshine. In 1980, he played for the Cleveland Cobras in the ASL. That fall, he signed with the Cleveland Force in the Major Indoor Soccer League. In 1985, he played for the independent Los Angeles United. In 1986, he moved to the Los Angeles Heat of the Western Soccer Alliance. He played for the Heat as a backup to David Vanole in 1987, then left the league. In 1990, he returned to the Heat, now playing in the American Professional Soccer League. He permanently retired from playing following that season.



Output: a