Problem:By volume, dry air contains 78.09 % nitrogen, 20.95 % oxygen, 0.93 % argon, 0.04 % carbon dioxide, and small amounts of other gases. Air also contains a variable amount of water vapor, on average around 1 % at sea level, and 0.4 % over the entire atmosphere. Air content and atmospheric pressure vary at different layers, and air suitable for use in photosynthesis by terrestrial plants and breathing of terrestrial animals is found only in Earth's troposphere and in artificial atmospheres.

Answer this question based on the passage: what is the percentage of o2 in air?
Solution:OK... To answer the above question, the relevant sentence is: By volume, dry air contains 78.09 % nitrogen, 20.95 % oxygen, 0.93 % argon, 0.04 % carbon dioxide, and small amounts of other gases.
20.95 %.

Student A:Context: "In da Club" is a hip hop song performed by American rapper 50 Cent from his debut studio album Get Rich or Die Tryin' (2003). The song was written by 50 Cent, Dr. Dre, and Mike Elizondo and produced by Dr. Dre with co-production credit from Elizondo. The track was released in January 2003 as the album's lead single and peaked at number one on the Billboard Hot 100, becoming 50 Cent's first number one single on that chart.

Question: who produced in the club by 50 cent?
Student B:OK... To answer this question, we should know that: The song was written by 50 Cent, Dr. Dre, and Mike Elizondo and produced by Dr. Dre with co-production credit from Elizondo.
Dr. Dre with co-production credit from Elizondo.

Problem:Passage: Sami Gayle (born January 22, 1996) is an American actress. She co-stars as Nicky Reagan-Boyle in the CBS series Blue Bloods.

Question: Based on this passage, who plays nikki in the pilot of blue bloods?
Solution:OK... To answer the above question, the relevant sentence is: She co-stars as Nicky Reagan-Boyle in the CBS series Blue Bloods.
Sami Gayle.

Student A:Context: World War I (WWI or WW1), also known as the First World War, the Great War, or the War to End All Wars, was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918. More than 70 million military personnel, including 60 million Europeans, were mobilised in one of the largest wars in history. Over nine million combatants and seven million civilians died as a result of the war (including the victims of a number of genocides), a casualty rate exacerbated by the belligerents' technological and industrial sophistication, and the tactical stalemate caused by gruelling trench warfare. It was one of the deadliest conflicts in history and precipitated major political change, including revolutions in many of the nations involved. Unresolved rivalries at the end of the conflict contributed to the start of the Second World War twenty-one years later.

Question: when did the first world war start and finish?
Student B:OK... To answer the question, consider the following: World War I (WWI or WW1), also known as the First World War, the Great War, or the War to End All Wars, was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918.
28 July 1914 to 11 November 1918.

Problem:Since 1947, there have been 14 different prime ministers. The first few decades after 1947 saw the Indian National Congress' (INC) almost complete domination over the political map of India. India's first prime minister -- Jawaharlal Nehru -- took oath on 15 August 1947. Nehru went on to serve as prime minister for 17 consecutive years, winning four general elections in the process. His tenure ended in May 1964, on his death. After the death of Nehru, Lal Bahadur Shastri -- a former home minister and a leader of the Congress party -- ascended to the position of prime minister. Shastri's tenure saw the Indo-Pakistani War of 1965. Shashtri subsequently died of a reported heart attack in Tashkent, after signing the Tashkent Declaration.

Based on this passage, who was the first prime minester of india?
Solution:OK... The relevant sentence in the passage is: India's first prime minister -- Jawaharlal Nehru -- took oath on 15 August 1947.
Jawaharlal Nehru.

Problem:Context: Samuel George Claflin (born 27 June 1986) is an English actor. He is known for portraying Finnick Odair in The Hunger Games film series, Philip Swift in Pirates of the Caribbean: On Stranger Tides, and Will Traynor in Me Before You.

Question: what actor plays finnick in the hunger games?
Solution:
OK... To answer the question, consider the following: He is known for portraying Finnick Odair in The Hunger Games film series, Philip Swift in Pirates of the Caribbean: On Stranger Tides, and Will Traynor in Me Before You.
Samuel George Claflin.