Student A:"Footprints in the Sand" is a song recorded by British singer Leona Lewis for her debut studio album Spirit (2007). It was written by Simon Cowell, David Kreuger, Per Magnusson, Richard Page, and produced by Steve Mac. The song was digitally released as Lewis's third single on 9 March 2008 in the United Kingdom. Sony BMG and Syco Music launched it as a double A-side with "Better in Time", and "You Bring Me Down" as the B-side.

Who wrote footprints in the sand by leona lewis?
Student B:OK... The relevant information to answer the above question is: It was written by Simon Cowell, David Kreuger, Per Magnusson, Richard Page, and produced by Steve Mac.
Simon Cowell.

Problem:Passage: The Big Bang Theory is an American television sitcom created by Chuck Lorre and Bill Prady, both of whom serve as executive producers on the series, along with Steven Molaro. All three also serve as head writers. The show premiered on CBS on September 24, 2007. In March 2017, the series was renewed for two additional seasons, bringing its total to twelve, and running through the 2018 -- 19 television season. The eleventh season premiered on September 25, 2017.

Question: Based on this passage, when did the show big bang theory start?
Solution:OK... The relevant information is: The show premiered on CBS on September 24, 2007.
September 24 , 2007.

Student A:Passage: The first use of X-rays under clinical conditions was by John Hall-Edwards in Birmingham, England on 11 January 1896, when he radiographed a needle stuck in the hand of an associate. On February 14, 1896 Hall-Edwards was also the first to use X-rays in a surgical operation. In early 1896, several weeks after Rontgen's discovery, Ivan Romanovich Tarkhanov irradiated frogs and insects with X-rays, concluding that the rays "not only photograph, but also affect the living function".

Question: Based on this passage, when were x rays first used in medicine?
Student B:OK... The relevant information is: The first use of X-rays under clinical conditions was by John Hall-Edwards in Birmingham, England on 11 January 1896, when he radiographed a needle stuck in the hand of an associate.
11 January 1896.

Problem:Passage: The Belmont Stakes is traditionally called "The Test of the Champion" because of its 1.5 mile length -- by far the longest of the three Triple Crown races, and one of the longest for a first-class race in the United States on the dirt. It is also known as "The Run for the Carnations" because the winning horse is draped with a blanket of white carnations after the race, in similar fashion to the blanket of roses and black-eyed Susans for the Derby and Preakness, respectively. The winning owner is ceremonially presented with the silver winner's trophy, designed by Paulding Farnham for Tiffany and Co. It was first presented to August Belmont, Jr. in 1896 and donated by the Belmont family for annual presentation in 1926.

Question: Based on this passage, what is the official flower of the belmont stakes?
Solution:OK... The relevant information is: It is also known as "The Run for the Carnations" because the winning horse is draped with a blanket of white carnations after the race, in similar fashion to the blanket of roses and black-eyed Susans for the Derby and Preakness, respectively.
white carnations.

Student A:Erin is portrayed by Ellie Kemper. She is an original character, although her closest equivalent in the British version of the series would be Mel the receptionist, who appears briefly in The Office Christmas specials, as Dawn Tinsley's replacement.

Answer this question: who plays the new receptionist on the office?
Student B:OK... This is the relevant information: Erin is portrayed by Ellie Kemper.
Ellie Kemper.

Student A:The Horsehead Nebula (also known as Barnard 33) is a dark nebula in the constellation Orion. The nebula is located just to the south of the star Alnitak, which is farthest east on Orion's Belt, and is part of the much larger Orion Molecular Cloud Complex. The nebula was first recorded in 1888 by Scottish astronomer Williamina Fleming on photographic plate B2312 taken at the Harvard College Observatory. The Horsehead Nebula is approximately 1500 light years from Earth. It is one of the most identifiable nebulae because of the shape of its swirling cloud of dark dust and gases, which bears some resemblance to a horse's head when viewed from Earth.

Answer this question: how far is the horsehead nebula from earth?
Student B:
OK... The important part for answering this question is: The Horsehead Nebula is approximately 1500 light years from Earth.
approximately 1500 light years.