Problem:Sir Timothy John Berners-Lee OM KBE FRS FREng FRSA FBCS (born 8 June 1955), also known as TimBL, is an English engineer and computer scientist, best known as the inventor of the World Wide Web. He is currently a professor of Computer Science at the University of Oxford. He made a proposal for an information management system in March 1989, and he implemented the first successful communication between a Hypertext Transfer Protocol (HTTP) client and server via the internet in mid-November the same year.

Who is regarded as the founder of world wide web?
Solution:OK... To answer the question, consider the following: Sir Timothy John Berners-Lee OM KBE FRS FREng FRSA FBCS (born 8 June 1955), also known as TimBL, is an English engineer and computer scientist, best known as the inventor of the World Wide Web.
Sir Timothy John Berners - Lee.

Student A:Context: Originating in Ibach, Switzerland, the Swiss Army knife was first produced in 1891 after the company, Karl Elsener, which later became Victorinox, won the contract to produce the Swiss Army's Modell 1890 knife from the previous German manufacturer. In 1893, the Swiss cutlery company Paul Boéchat & Cie, which later became Wenger, received its first contract from the Swiss military to produce model 1890 knives; the two companies split the contract for provision of the knives from 1908 until Victorinox acquired Wenger in 2005. A cultural icon of Switzerland, the design of the knife and its versatility have both led to worldwide recognition.

Question: when was the first swiss army knife made?
Student B:OK... To answer the question, consider the following: Originating in Ibach, Switzerland, the Swiss Army knife was first produced in 1891 after the company, Karl Elsener, which later became Victorinox, won the contract to produce the Swiss Army's Modell 1890 knife from the previous German manufacturer.
1891.

Problem:The 2017 Australian Open Men's Singles final was the championship tennis match of the Men's Singles tournament at the 2017 Australian Open. It was contested between Roger Federer and Rafael Nadal, ranked 17th and 9th in the world respectively. It was their record ninth meeting in a Grand Slam final in their rivalry, and their 1st meeting in a Grand Slam final since the 2011 French Open. In a rematch of the 2009 Australian Open final, which Nadal won in 5 sets, Roger Federer won the duel in 5 sets, beating Nadal for the first time in a Grand Slam since the 2007 Wimbledon final. He also trailed Nadal 3 -- 1 in the final set but won 5 games in a row to win the title. This ended a 6-match losing streak against Nadal in Grand Slam events. Having lost all of their previous three encounters, this was the first time Federer defeated Nadal at the Australian Open and also marked Federer's first Grand Slam victory over Nadal outside the grass courts of Wimbledon. Federer extended his record of Grand Slam men's singles titles to 18 exceeding the previous record of 14 held by Pete Sampras.

Based on this passage, who won the australian men's open final?
Solution:OK... The relevant information to answer the above question is: Having lost all of their previous three encounters, this was the first time Federer defeated Nadal at the Australian Open and also marked Federer's first Grand Slam victory over Nadal outside the grass courts of Wimbledon.
Federer.

Student A:Context: Vinegar is a liquid consisting of about 5 -- 20 % acetic acid (CH COOH), water, and other trace chemicals, which may include flavorings. The acetic acid is produced by the fermentation of ethanol by acetic acid bacteria. Vinegar is now mainly used as a cooking ingredient, or in pickling. As the most easily manufactured mild acid, it has historically had a great variety of industrial, medical, and domestic uses, some of which (such as its use as a general household cleaner) are still commonly practiced today.

Question: what is the percentage of acetic acid in vinegar?
Student B:OK... The relevant sentence in the passage is: Vinegar is a liquid consisting of about 5 -- 20 % acetic acid (CH COOH), water, and other trace chemicals, which may include flavorings.
5 -- 20 %.

Problem:In Peter Jackson's Lord of the Rings trilogy and The Hobbit prequel trilogy, Galadriel is played by Cate Blanchett. In the movies, other than possessing the Ring Nenya, Galadriel displays an ability to communicate with others telepathically and to assume a radiant and terrifying appearance.

Based on this passage, who played the girl elf in lord of the rings?
Solution:OK... The relevant sentence in the passage is: In Peter Jackson's Lord of the Rings trilogy and The Hobbit prequel trilogy, Galadriel is played by Cate Blanchett.
Cate Blanchett.

Problem:Context: Me at the zoo is the first video that was uploaded to YouTube. It was uploaded on April 23, 2005 at 20: 27: 12 PDT (April 24, 2005 at 3: 27: 12 UTC) by the site's co-founder Jawed Karim, with the username "jawed" and recorded by his high school friend Yakov Lapitsky.

Question: who uploaded the first video on youtube ever?
Solution:
OK... To answer this question, we should know that: It was uploaded on April 23, 2005 at 20: 27: 12 PDT (April 24, 2005 at 3: 27: 12 UTC) by the site's co-founder Jawed Karim, with the username "jawed" and recorded by his high school friend Yakov Lapitsky.
the site 's co-founder Jawed Karim.