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

[EX Q]: 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 A]: Tourism

[EX Q]: What makes one species provide us with a bunch of different meal options?, Context: Interspecific crop diversity is, in part, responsible for offering variety in what we eat. Intraspecific diversity, the variety of alleles within a single species, also offers us choice in our diets. If a crop fails in a monoculture, we rely on agricultural diversity to replant the land with something new. If a wheat crop is destroyed by a pest we may plant a hardier variety of wheat the next year, relying on intraspecific diversity. We may forgo wheat production in that area and plant a different species altogether, relying on interspecific diversity. Even an agricultural society which primarily grows monocultures, relies on biodiversity at some point.
[EX A]: the variety of alleles

[EX Q]: What is the second most popular place to visit for tourists while they are in Paris?, Context: There were 72.1 million visitors to the city's museums and monuments in 2013. The city's top tourist attraction was the Notre Dame Cathedral, which welcomed 14 million visitors in 2013. The Louvre museum had more than 9.2 million visitors in 2013, making it the most visited museum in the world. The other top cultural attractions in Paris in 2013 were the Basilique du Sacre-Cur (10.5 million visitors); the Eiffel Tower (6,740,000 visitors); the Centre Pompidou (3,745,000 visitors) and Musee d'Orsay (3,467,000 visitors). In the Paris region, Disneyland Paris, in Marne-la-Vallee, 32 km (20 miles) east of the centre of Paris, was the most visited tourist attraction in France, with 14.9 million visitors in 2013.
[EX A]:
Louvre