Problem:The Japanese river otter (Lutra lutra whiteleyi) ( , Nihon-kawauso) is an extinct variety of otter formerly widespread in Japan. Dating back to the 1880s, it was even seen in Tokyo. The population suddenly shrank in the 1930s, and the mammal nearly vanished. Since then, it has only been spotted several times, in 1964 in the Seto Inland Sea, and in the Uwa Sea in 1972 and 1973. The last official sighting was in the southern part of Kochi Prefecture in 1979, when it was photographed in the mouth of the Shinjo River in Susaki. It was subsequently classified as a "Critically Endangered" species on the Japanese Red List. On August 28, 2012, the Japanese river otter was officially declared extinct by the Ministry of the Environment. It is the official animal symbol of Ehime Prefecture. In February 2017, a wild otter was caught on camera on Tsushima Island, Nagasaki Prefecture. However, it is not known whether the observed otter was a Japanese river otter.

Answer this question based on the passage: when did the japanese river otter become extinct?
Solution:OK... To answer the above question, the relevant sentence is: On August 28, 2012, the Japanese river otter was officially declared extinct by the Ministry of the Environment.
August 28 , 2012.

Student A:Passage: An indirect free kick is awarded to the opposing team from the place where the offence occurred, i.e. where the goalkeeper handled the ball. In practice, this offence is very rarely committed.

Question: Based on this passage, what happens if goalie picks up back pass?
Student B:OK... This is the relevant information: An indirect free kick is awarded to the opposing team from the place where the offence occurred, i.e. where the goalkeeper handled the ball.
An indirect free kick is awarded to the opposing team from the place where the offence occurred.

Problem:Keep Calm and Carry On was a motivational poster produced by the British government in 1939 in preparation for World War II. The poster was intended to raise the morale of the British public, threatened with widely predicted mass air attacks on major cities. Although 2.45 million copies were printed, and although the Blitz did in fact take place, the poster was hardly ever publicly displayed and was little known until a copy was rediscovered in 2000 at Barter Books, a bookshop in Alnwick. It has since been re-issued by a number of private companies, and has been used as the decorative theme for a range of products.

Based on this passage, where did the phrase keep calm and carry on come from?
Solution:OK... The relevant information to answer the above question is: Keep Calm and Carry On was a motivational poster produced by the British government in 1939 in preparation for World War II.
a motivational poster produced by the British government in 1939 in preparation for World War II.

Student A:Spider-Man: Homecoming was released on digital download by Sony Pictures Home Entertainment on September 26, 2017, and on Blu-ray, Blu-ray 3D, Ultra HD Blu-ray, and DVD on October 17, 2017. The digital and Blu-ray releases include behind-the-scenes featurettes, deleted scenes, and a blooper reel.

Based on this passage, when does spiderman homcoming come out on dvd?
Student B:OK... To answer this question, we should know that: Spider-Man: Homecoming was released on digital download by Sony Pictures Home Entertainment on September 26, 2017, and on Blu-ray, Blu-ray 3D, Ultra HD Blu-ray, and DVD on October 17, 2017.
October 17 , 2017.

Problem:United States Air Force Security Forces is the force protection and military police of the United States Air Force. Security Forces (SF) were formerly known as Military Police (MP), Air Police (AP), and Security Police (SP).

Answer this question based on the passage: what is security forces in the air force?
Solution:OK... This is the relevant information: United States Air Force Security Forces is the force protection and military police of the United States Air Force.
the force protection and military police of the United States Air Force.

Problem:The North Star was a nineteenth-century anti-slavery newspaper published from the Talman Building in Rochester, New York by abolitionist Frederick Douglass. The paper commenced publication on December 3, 1847 and ceased as The North Star in June 1851 when it merged with Gerrit Smith's Liberty Party Paper (based in Syracuse, New York) to form Frederick Douglass' Paper. The North Star's slogan was "Right is of no Sex -- Truth is of no Color -- God is the Father of us all, and we are all Brethren."

Based on this passage, when did frederick douglass published the north star?
Solution:
OK... To answer the question, consider the following: The North Star was a nineteenth-century anti-slavery newspaper published from the Talman Building in Rochester, New York by abolitionist Frederick Douglass.
nineteenth - century.