Student A:Passage: World population has experienced continuous growth since the end of the Great Famine of 1315 -- 17 and the Black Death in 1350, when it was near 370 million. The highest population growth rates -- global population increases above 1.8 % per year -- occurred between 1955-1975 peaking to 2.06 % between 1965-1970. The growth rate has declined to 1.18 % between 2010-2015 and is projected to decline to 0.13 % by the year 2100. Total annual births were highest in the late 1980s at about 139 million, and are now expected to remain essentially constant at their 2011 level of 135 million, while deaths number 56 million per year and are expected to increase to 80 million per year by 2040. World population reached 7 billion on October 31, 2011 according to the United Nations Population Fund, and on March 12, 2012 according to the United States Census Bureau.

Question: Based on this passage, when did the world population reached 7 billion?
Student B:OK... The relevant information is: World population reached 7 billion on October 31, 2011 according to the United Nations Population Fund, and on March 12, 2012 according to the United States Census Bureau.
October 31 , 2011 according to the United Nations Population Fund , and on March 12 , 2012 according to the United States Census Bureau.

Problem:Passage: In North America, trick-or-treating has been a Halloween tradition since the late 1920s. In Britain and Ireland the tradition of going house-to-house collecting food at Halloween goes back at least as far as the 16th century, as had the tradition of people wearing costumes at Halloween. In 19th century Britain and Ireland, there are many accounts of people going house-to-house in costume at Halloween, reciting verses in exchange for food, and sometimes warning of misfortune if they were not welcomed. The Scottish Halloween custom of "guising" -- children disguised in costume going from house to house for food or money -- is first recorded in North America in 1911 in Ontario, Canada. While going house-to-house in costume has remained popular among Scots and Irish, the custom of saying "trick or treat" has only recently become common. The activity is prevalent in the United States, Canada, the United Kingdom, the Republic of Ireland, Puerto Rico, and northwestern and central Mexico. In the latter, this practice is called calaverita (Spanish for "sugar skull"), and instead of "trick or treat", the children ask me da mi calaverita? ("can you give me my sugar skull?") where a calaverita is a small skull made of sugar or chocolate.

Question: Based on this passage, when did trick or treating begin in america?
Solution:OK... To answer the above question, the relevant sentence is: In North America, trick-or-treating has been a Halloween tradition since the late 1920s.
the late 1920s.

Student A:The shrine buildings at Naiku and Geku, as well as the Uji Bridge, are rebuilt every 20 years as a part of the Shinto belief of the death and renewal of nature and the impermanence of all things and as a way of passing building techniques from one generation to the next. The twenty year renewal process is called the Sengu. In August, in a long-standing tradition, the people who live in Ise are allowed to enter the area around the Inner Sanctum of the Naiku as well as the Geku. Some villages drag a wooden carriage laden with white stones up the Isuzu River onto the grounds of the Naiku. Each participant gets two white stones in a white handkerchief and these allow them to place the stones in the area around the Inner Sanctum. Other villages drag a huge wooden car or Noburi Kuruma laden with white stones to the Uji bridge at the entrance of the grounds of the Naiku. Participants receive two white stones which are also placed in the sacred space around the Inner Sanctum. The entire tradition is called Shiraisshiki and it is very colourful with every participant wearing a' happi' coat representing a particular village. The rebuilding of the main shrine takes place on a site adjacent to the old, and each rebuilding alternates between the two sites. The next scheduled rebuilding of Naiku is due in 2033 on the lower, northern site.

Answer this question: why is the naiku (inner) shrine at ise rebuilt every twenty years?
Student B:OK... This is the relevant information: The shrine buildings at Naiku and Geku, as well as the Uji Bridge, are rebuilt every 20 years as a part of the Shinto belief of the death and renewal of nature and the impermanence of all things and as a way of passing building techniques from one generation to the next.
as a part of the Shinto belief of the death and renewal of nature and the impermanence of all things and as a way of passing building techniques from one generation to the next.

Problem:The Union of South Africa (Dutch: Unie van Zuid-Afrika, Afrikaans: Unie van Suid-Afrika) is the historic predecessor to the present-day republic of South Africa. It came into being on 31 May 1910 with the unification of four previously separate British colonies: the Cape, Natal, Transvaal and Orange River colonies. It included the territories formerly part of the Boer republics annexed in 1902, the South African Republic and the Orange Free State.

Based on this passage, when was the union of south africa formed?
Solution:OK... The relevant information to answer the above question is: It came into being on 31 May 1910 with the unification of four previously separate British colonies: the Cape, Natal, Transvaal and Orange River colonies.
31 May 1910.

Student A:Context: The Arroyo Seco Parkway, formerly known as the Pasadena Freeway, is the first freeway in the Western United States. It connects Los Angeles with Pasadena alongside the Arroyo Seco seasonal river. It is notable not only for being the first, mostly opened in 1940, but for representing the transitional phase between early parkways and modern freeways. It conformed to modern standards when it was built, but is now regarded as a narrow, outdated roadway. A 1953 extension brought the south end to the Four Level Interchange in downtown Los Angeles and a connection with the rest of the freeway system.

Question: when was the first freeway built in los angeles?
Student B:OK... The relevant information to answer the above question is: It is notable not only for being the first, mostly opened in 1940, but for representing the transitional phase between early parkways and modern freeways.
1940.

Student A:As of 2017, the record for the most wins is held by Arsenal with 13 victories. The cup has been won by the same team in two or more consecutive years on ten occasions, and four teams have won consecutive finals more than once: Wanderers, Blackburn Rovers, Tottenham Hotspur and Arsenal. The cup has been won by a non-English team once. The cup is currently held by Arsenal, who defeated Chelsea in the 2017 final.

Based on this passage, who won the most fa cups in england?
Student B:
OK... The relevant information to answer the above question is: As of 2017, the record for the most wins is held by Arsenal with 13 victories.
Arsenal.