In this task you will be given a question and a passage. You need to determine if the answer to the question is contained in the passage. If the answer can be found in the passage you should output 'True'. If the answer cannot be found in the passage you should output 'False'.

Passage: 'In microeconomic theory, the opportunity cost, also known as alternative cost, is the value (not a benefit) of the choice of a best alternative cost while making a decision. A choice needs to be made between several mutually exclusive alternatives; assuming the best choice is made, it is the 'cost' incurred by not enjoying the benefit that would have been had by taking the second best available choice. The New Oxford American Dictionary defines it as 'the loss of potential gain from other alternatives when one alternative is chosen.' Opportunity cost is a key concept in economics, and has been described as expressing 'the basic relationship between scarcity and choice.' The notion of opportunity cost plays a crucial part in attempts to ensure that scarce resources are used efficiently. Thus, opportunity costs are not restricted to monetary or financial costs: the real cost of output forgone, lost time, pleasure or any other benefit that provides utility should also be considered an opportunity cost.'. Question: 'why is the concept of opportunity cost important'.
True

Passage: 'The oldest motor-cycle racing circuit still in use is the Snaefell Mountain Course over which the Isle of Man Tourist Trophy races are run. Starting at the town of Douglas on the south-east coast, the course takes a wide sweep to the west and north to enter the town of Ramsey on the north-east coast and thence return to the starting point, each lap measuring 37 ​ ⁄ miles (60.7 km) and taking in over 200 bends while climbing from sea level to an altitude of over 1,300 ft (396 m). This circuit is the epitome of the natural road course, all the roads used being ordinary public highways closed for the racing and practice sessions.'. Question: 'when will the 2018 world series be played'.
False

Passage: 'The Nile has two major tributaries, the White Nile and Blue Nile. The White Nile is considered to be the headwaters and primary stream of the Nile itself. The Blue Nile, however, is the source of most of the water and silt. The White Nile is longer and rises in the Great Lakes region of central Africa, with the most distant source still undetermined but located in either Rwanda or Burundi. It flows north through Tanzania, Lake Victoria, Uganda and South Sudan. The Blue Nile (Amharic: ዓባይ, ʿĀbay) begins at Lake Tana in Ethiopia and flows into Sudan from the southeast. The two rivers meet just north of the Sudanese capital of Khartoum.'. Question: 'what is the main source of river nile'.

True