In this task, you are given a question and a context passage. You have to answer the question based on the given passage.

Example Input: Glass that has been covered with ash or soot on one one side to obscure light is called?, Context: Historically, pubs have been socially and culturally distinct from cafés, bars and German beer halls. Most pubs offer a range of beers, wines, spirits, and soft drinks and snacks. Traditionally the windows of town pubs were of smoked or frosted glass to obscure the clientele from the street but from the 1990s onwards, there has been a move towards clear glass, in keeping with brighter interiors.
Example Output: smoked

Example Input: When did A Coruna begin to grow?, Context: In northern Galicia, the A Coruña-Ferrol metropolitan area has become increasingly dominant in terms of population. The population of the city of A Coruña in 1900 was 43,971. The population of the rest of the province including the City and Naval Station of nearby Ferrol and Santiago de Compostela was 653,556. A Coruña's growth occurred after the Spanish Civil War at the same speed as other major Galician cities, but it was the arrival of democracy in Spain after the death of Francisco Franco when A Coruña left all the other Galician cities behind.
Example Output: after the Spanish Civil War

Example Input: Why would a student choose one of these schools?, Context: Polytechnics were tertiary education teaching institutions in England, Wales and Northern Ireland. Since 1970 UK Polytechnics operated under the binary system of education along with universities. Polytechnics offered diplomas and degrees (bachelor's, master's, PhD) validated at the national level by the UK Council for National Academic Awards CNAA. They particularly excelled in engineering and applied science degree courses similar to technological universities in the USA and continental Europe. The comparable institutions in Scotland were collectively referred to as Central Institutions. Britain's first Polytechnic, the Royal Polytechnic Institution later known as the Polytechnic of Central London (now the University of Westminster) was established in 1838 at Regent Street in London and its goal was to educate and popularize engineering and scientific knowledge and inventions in Victorian Britain "at little expense." The London Polytechnic led a mass movement to create numerous Polytechnic institutes across the UK in the late 19th Century. Most Polytechnic institutes were established at the centre of major metropolitan cities and their focus was on engineering, applied science and technology education.
Example Output:
They particularly excelled in engineering and applied science degree courses