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

Ex Input:
What is beneficial to London's economy?, Context: London is one of the leading tourist destinations in the world and in 2015 was ranked as the most visited city in the world with over 65 million visits. It is also the top city in the world by visitor cross-border spending, estimated at US$20.23 billion in 2015 Tourism is one of London's prime industries, employing the equivalent of 350,000 full-time workers in 2003, and the city accounts for 54% of all inbound visitor spend in UK. As of 2016 London is rated as the world top ranked city destination by TripAdvisor users.

Ex Output:
Tourism


Ex Input:
When did large scale production of such vehicles begin?, Context: The Hummers that Schwarzenegger bought 1992 are so large – each weighs 6,300 lb (2,900 kg) and is 7 feet (2.1 m) wide – that they are classified as large trucks, and U.S. fuel economy regulations do not apply to them. During the gubernatorial recall campaign he announced that he would convert one of his Hummers to burn hydrogen. The conversion was reported to have cost about US$21,000. After the election, he signed an executive order to jump-start the building of hydrogen refueling plants called the California Hydrogen Highway Network, and gained a U.S. Department of Energy grant to help pay for its projected US$91,000,000 cost. California took delivery of the first H2H (Hydrogen Hummer) in October 2004.

Ex Output:
After the election


Ex Input:
what bus station start with the letter S?, Context: There are 3 main bus companies providing services in the city; Arriva North East, Go North East and Stagecoach North East. There are two major bus stations in the city: Haymarket bus station and Eldon Square bus station. Arriva mainly operates from Haymarket Bus Station providing the majority of services to the north of Newcastle, Northumberland and North Tyneside. Go-Ahead operates from Eldon Square Bus Station, providing the majority of services south of the river in Gateshead, South Tyneside, Sunderland, and County Durham. Stagecoach is the primary operator in the city proper, with cross-city services mainly between both the West and East ends via the city centre with some services extending out to the MetroCentre, Killingworth, Wallsend and Ponteland. Bus Services in Newcastle upon Tyne and the surrounding boroughs part of the Tyne and Wear area are coordinated by Nexus, the Tyne and Wear Passenger Transport Executive.

Ex Output:
Stagecoach