Problem:He next experimented with a high-pressure hydrogen jet by which low temperatures were realised through the Joule -- Thomson effect, and the successful results he obtained led him to build at the Royal Institution a large regenerative cooling refrigerating machine. Using this machine in 1898, liquid hydrogen was collected for the first time, solid hydrogen following in 1899. He tried to liquefy the last remaining gas, helium, which condenses into a liquid at 268.9 C, but owing to a number of factors, including a short supply of helium, Dewar was preceded by Heike Kamerlingh Onnes as the first person to produce liquid helium, in 1908. Onnes would later be awarded the Nobel Prize in Physics for his research into the properties of matter at low temperatures -- Dewar was nominated several times, but never succeeded in winning the Nobel Prize.

Who has won the race to liquefy helium?
Solution:OK... The relevant information to answer the above question is: He tried to liquefy the last remaining gas, helium, which condenses into a liquid at 268.9 C, but owing to a number of factors, including a short supply of helium, Dewar was preceded by Heike Kamerlingh Onnes as the first person to produce liquid helium, in 1908.
Heike Kamerlingh Onnes.

Student A:Context: Marin Cilic claimed his first grand slam title, defeating Kei Nishikori, also playing in his first major final.

Question: who won the men's singles title of the us open tennis grand slam 2014?
Student B:OK... The relevant information to answer the above question is: Marin Cilic claimed his first grand slam title, defeating Kei Nishikori, also playing in his first major final.
Marin Cilic.

Problem:Abuja (/ bud /) is the capital city of Nigeria located in the centre of the country within the Federal Capital Territory (FCT). It is a planned city and was built mainly in the 1980s, replacing the country's most populous city of Lagos as the capital on 12 December 1991. Abuja's geography is defined by Aso Rock, a 400-metre (1,300 ft) monolith left by water erosion. The Presidential Complex, National Assembly, Supreme Court and much of the city extend to the south of the rock. Zuma Rock, a 792-metre (2,598 ft) monolith, lies just north of the city on the expressway to Kaduna.

When was the federal capital territory moved to abuja?
Solution:OK... The relevant sentence in the passage is: It is a planned city and was built mainly in the 1980s, replacing the country's most populous city of Lagos as the capital on 12 December 1991.
12 December 1991.

Student A:The first goal, after 51 minutes, was to become known as the "Hand of God goal", which Maradona scored by using his hand. His second, four minutes after his first, saw him dribble past five England players, Beardsley, Reid, Butcher, Fenwick, Butcher (again), and finally goalkeeper Peter Shilton, and became known as the "Goal of the Century". Argentina won the game 2 -- 1 and went on to win the 1986 World Cup with a victory over West Germany in the final match. Maradona won the golden ball for player of the tournament whilst England's goalscorer on the day, Gary Lineker, won the golden boot for being the tournament's top scorer.

Answer this question based on the passage: footballer who won the golden boot in 1986?
Student B:OK... This is the relevant information: Maradona won the golden ball for player of the tournament whilst England's goalscorer on the day, Gary Lineker, won the golden boot for being the tournament's top scorer.
Gary Lineker.

Problem:While mentioned in passing throughout later seasons, Burke officially returns in the tenth season in order to conclude Cristina Yang's departure from the series.

Answer this question based on the passage: what season does burke come back in grey's anatomy?
Solution:OK... The relevant information is: While mentioned in passing throughout later seasons, Burke officially returns in the tenth season in order to conclude Cristina Yang's departure from the series.
the tenth season.

Problem:Cape Fear is a 1962 American psychological thriller film starring Robert Mitchum, Gregory Peck, Martin Balsam, and Polly Bergen. It was adapted by James R. Webb from the novel The Executioners by John D. MacDonald. It was initially storyboarded by Alfred Hitchcock (slated to direct but quit over a dispute), subsequently directed by J. Lee Thompson, and released on April 12, 1962. The movie concerns an attorney whose family is stalked by a criminal he helped to send to jail.

Who starred in the original movie cape fear?
Solution:
OK... To answer the question, consider the following: Cape Fear is a 1962 American psychological thriller film starring Robert Mitchum, Gregory Peck, Martin Balsam, and Polly Bergen.
Robert Mitchum.