Ans: The Chernobyl accident
Ques: The Chernobyl accident dominates the energy accidents sub-category of most disastrous nuclear power plant accident in history, both in terms of cost and casualties. It is one of only two nuclear energy accidents classified as a level 7 event (the maximum classification) on the International Nuclear Event Scale, the other being the Fukushima Daiichi nuclear disaster in Japan in 2011. The struggle to safeguard against scenarios which were perceived, in many cases falsely, as having the potential for greater catastrophe, together with later decontamination efforts of the surroundings, ultimately involved over 500,000 workers and cost an estimated 18 billion rubles.

Where did the largest nuclear accident take place?
CoT: The relevant information to answer the above question is: The Chernobyl accident dominates the energy accidents sub-category of most disastrous nuclear power plant accident in history, both in terms of cost and casualties.

Ans: 1992
Ques: It was first performed during the Weekend Update segment of the season 18 episode of Saturday Night Live on November 21, 1992 as a duet between Sandler and Weekend Update anchor Kevin Nealon; it was originally intended to be a recurring Thanksgiving tradition with other cast members debuting their own original songs, but the next year, it was again Sandler, doing another version of the same song in the style of Bruce Springsteen. A live performance of the original song was recorded at The Strand in Redondo Beach, California on July 25, 1993. The version at The Strand was featured on Sandler's debut album They're All Gonna Laugh at You! and was released as a single.

Answer this question: what year did adam sandler sing the thanksgiving song?
CoT: The relevant information is: It was first performed during the Weekend Update segment of the season 18 episode of Saturday Night Live on November 21, 1992 as a duet between Sandler and Weekend Update anchor Kevin Nealon; it was originally intended to be a recurring Thanksgiving tradition with other cast members debuting their own original songs, but the next year, it was again Sandler, doing another version of the same song in the style of Bruce Springsteen.

Ans: four times
Ques: Lusth returned for a fourth time in the 34th season, Survivor: Game Changers. This made him one of only four contestants at the time to ever compete on Survivor four times -- the others being "Boston Rob" Mariano, Rupert Boneham, and fellow Game Changers contestant Cirie Fields. On Day 16, Lusth attended his first Tribal Council, where he joined the majority in voting out two-time winner Sandra Diaz-Twine. He had to go to Tribal Council again on Day 18, when he joined the majority in eliminating Jeff Varner. He was ultimately blindsided on Day 24 for being too big of a physical threat. He placed 12th and was the second member of the jury. At Final Tribal Council, he praised finalist Brad Culpepper for his gameplay and voted for Culpepper to win, although Sarah Lacina would ultimately win the title of "Sole Survivor."

Answer this question based on the passage: how many times has ozzy played on survivor?
CoT: The important part for answering this question is: This made him one of only four contestants at the time to ever compete on Survivor four times -- the others being "Boston Rob" Mariano, Rupert Boneham, and fellow Game Changers contestant Cirie Fields.

Ans: the classic Lada Riva

Ques: The number of cars on Russian roads reached 40,629,200 in 2016. Lada cars accounted for 34.6 % of the total, down from 41.6 % five years earlier. Almost half of those cars were over ten years old, and the single most popular car model was still the classic Lada Riva.

Answer this question: what is the most popular car in russia?
CoT: The important part for answering this question is: Almost half of those cars were over ten years old, and the single most popular car model was still the classic Lada Riva.