Problem:In 1983, she said it is not about Mick Jagger, who contributed uncredited backing vocals to the song. In a 1993 book, Angie Bowie claimed to be the "wife of a close friend" mentioned in "You're So Vain", and that Jagger, for a time, had been "obsessed" with her. Simon made another comment about the subject's identity as a guest artist on Janet Jackson's 2001 single, "Son of a Gun (I Betcha Think This Song Is About You)", which sampled "You're So Vain". Simon said about the song, "The apricot scarf was worn by Nick (Delbanco). Nothing in the words referred to Mick."

Answer this question: who sang backing vocals on you're so vain?
Solution:OK... The important part for answering this question is: In 1983, she said it is not about Mick Jagger, who contributed uncredited backing vocals to the song.
Mick Jagger.

Student A:Passage: On the night of October 1, 2017, a gunman opened fire on a crowd of concertgoers at the Route 91 Harvest music festival on the Las Vegas Strip in Nevada, leaving 58 people dead and 546 injured. Between 10: 05 and 10: 15 p.m. PDT, 64-year-old Stephen Paddock of Mesquite, Nevada, fired hundreds of rifle rounds from his suite on the 32nd floor of the nearby Mandalay Bay hotel. About an hour after Paddock fired his last shot into the crowd, he was found dead in his room from a self-inflicted gunshot wound. His motive is unknown.

Question: Based on this passage, when did the shooting in las vegas happen 2017?
Student B:OK... To answer the above question, the relevant sentence is: On the night of October 1, 2017, a gunman opened fire on a crowd of concertgoers at the Route 91 Harvest music festival on the Las Vegas Strip in Nevada, leaving 58 people dead and 546 injured.
On the night of October 1 , 2017.

Problem:Passage: The current speaker is Sumitra Mahajan of the Bharatiya Janata Party, who is presiding over the 16th Lok Sabha. She is the second woman to hold the office, after her immediate predecessor Meira Kumar.

Question: Based on this passage, at present who is the speaker of lok sabha?
Solution:OK... This is the relevant information: The current speaker is Sumitra Mahajan of the Bharatiya Janata Party, who is presiding over the 16th Lok Sabha.
Sumitra Mahajan.

Student A:NASA's Mars Exploration Rover (MER) mission is an ongoing robotic space mission involving two Mars rovers, Spirit and Opportunity, exploring the planet Mars. It began in 2003 with the launch of the two rovers: MER-A Spirit and MER-B Opportunity -- to explore the Martian surface and geology; both landed on Mars at separate locations in January 2004. Both rovers far outlived their planned missions of 90 Martian solar days: MER-A Spirit was active until 2010, while MER-B Opportunity is still active in 2018, and holds the record for the longest distance driven by any off-Earth wheeled vehicle.

Based on this passage, what are the names of the two rovers currently exploring mars?
Student B:OK... The relevant information to answer the above question is: NASA's Mars Exploration Rover (MER) mission is an ongoing robotic space mission involving two Mars rovers, Spirit and Opportunity, exploring the planet Mars.
Spirit.

Problem:Congress banned the use of lead-based paint in 1971, and the Consumer Product Safety Commission followed with implementing regulations, effective in 1978. Additional regulations regarding lead abatement, testing and related issues have been issued by the Environmental Protection Agency (EPA).

When did the use of lead paint end?
Solution:OK... To answer this question, we should know that: Congress banned the use of lead-based paint in 1971, and the Consumer Product Safety Commission followed with implementing regulations, effective in 1978.
1978.

Problem:Overall, thirty-two different drivers have won the Championship, with Richard Petty, Dale Earnhardt, and Jimmie Johnson hold the record for most titles at seven. Johnson has the record for most consecutive Drivers' Championships, winning five from 2006 to 2010. Thus far, every champion has originated from the United States.

Based on this passage, who has won the most championships in nascar?
Solution:
OK... The relevant sentence in the passage is: Overall, thirty-two different drivers have won the Championship, with Richard Petty, Dale Earnhardt, and Jimmie Johnson hold the record for most titles at seven.
Richard Petty.