henryvn1102/MultihopQA huggingface dataset:
The neopositivists subscribed to a notion of philosophy as the conceptual clarification of the methods, insights and discoveries of the sciences. They saw in the logical symbolism elaborated by Frege (1848–1925) and Bertrand Russell (1872–1970) a powerful instrument that could rationally reconstruct all scientific discourse into an ideal, logically perfect, language that would be free of the ambiguities and deformations of natural language. This gave rise to what they saw as metaphysical pseudoproblems and other conceptual confusions. By combining Frege's thesis that all mathematical truths are logical with the early Wittgenstein's idea that all logical truths are mere linguistic tautologies, they arrived at a twofold classification of all propositions: the analytic (a priori) and the synthetic (a posteriori). On this basis, they formulated a strong principle of demarcation between sentences that have sense and those that do not: the so-called verification principle. Any sentence that is not purely logical, or is unverifiable is devoid of meaning. As a result, most metaphysical, ethical, aesthetic and other traditional philosophical problems came to be considered pseudoproblems.
Introduction to Mathematical Philosophy is a book by Bertrand Russell, published in 1919, written in part to exposit in a less technical way the main ideas of his and Whitehead's "Principia Mathematica" (1910–13), including the theory of descriptions.

Question: When did the author of Introduction to Mathematical Philosophy die?
Answer: 1970
Introduction to Mathematical Philosophy is a book by Bertrand Russell, published in 1919, written in part to exposit in a less technical way the main ideas of his and Whitehead's "Principia Mathematica" (1910–13), including the theory of descriptions.
The neopositivists subscribed to a notion of philosophy as the conceptual clarification of the methods, insights and discoveries of the sciences. They saw in the logical symbolism elaborated by Frege (1848–1925) and Bertrand Russell (1872–1970) a powerful instrument that could rationally reconstruct all scientific discourse into an ideal, logically perfect, language that would be free of the ambiguities and deformations of natural language. This gave rise to what they saw as metaphysical pseudoproblems and other conceptual confusions. By combining Frege's thesis that all mathematical truths are logical with the early Wittgenstein's idea that all logical truths are mere linguistic tautologies, they arrived at a twofold classification of all propositions: the analytic (a priori) and the synthetic (a posteriori). On this basis, they formulated a strong principle of demarcation between sentences that have sense and those that do not: the so-called verification principle. Any sentence that is not purely logical, or is unverifiable is devoid of meaning. As a result, most metaphysical, ethical, aesthetic and other traditional philosophical problems came to be considered pseudoproblems.

Question: When was the author of Introduction to Mathematical Philosophy born?
Answer: 1872
John Conrad Russell, 4th Earl Russell (16 November 1921 – 16 December 1987) was the eldest son of the philosopher and mathematician Bertrand Russell (the 3rd Earl) and his second wife, Dora Black. His middle name was a tribute to the writer Joseph Conrad, whom his father had long admired. He was the great-grandson of the 19th century British Whig Prime Minister Lord John Russell. He succeeded to the earldom on the death of his father on 2 February 1970.
Russell's teapot is an analogy, formulated by the philosopher Bertrand Russell (1872–1970), to illustrate that the philosophic burden of proof lies upon a person making unfalsifiable claims, rather than shifting the burden of "disproof" to others.

Question: Who is the child of the person Russell's teapot is named after?
Answer: Conrad Russell
North Korea: The event was held in Pyongyang on April 28. It was the first time that the Olympic torch has traveled to North Korea. A crowd of thousands waving pink paper flowers and small flags with the Beijing Olympics logo were organized by the authoritarian regime watched the beginning of the relay in Pyongyang, some waving Chinese flags. The event was presided over by the head of the country's parliament, Kim Yong Nam. The North, an ally of China, has been critical of disruptions to the torch relay elsewhere and has supported Beijing in its actions against protests in Tibet. Kim passed the torch to the first runner Pak Du Ik, who played on North Korea's 1966 World Cup soccer team, as he began the 19-kilometre route through Pyongyang. The relay began from the large sculpted flame of the obelisk of the Juche Tower, which commemorates the national ideology of Juche, or "self-reliance", created by the country's late founding President Kim Il Sung, father of leader Kim Jong Il, who did not attend.
Ri Sang-sim (; born October 10, 1979 in Pyongyang) is a North Korean judoka who competed in the women's half-lightweight category. She finished fifth in the 52-kg division at the 2003 World Judo Championships in Osaka, Japan, and also represented her nation North Korea at the 2004 Summer Olympics.

Question: When did the torch arrive in Ri Sang-sim's birthplace?
Answer: April 28
Ri Hyon-ju (born 20 February 1996 in Pyongyang) is a North Korean diver. He competed in the 10 metre platform at the 2012 Summer Olympics.
North Korea: The event was held in Pyongyang on April 28. It was the first time that the Olympic torch has traveled to North Korea. A crowd of thousands waving pink paper flowers and small flags with the Beijing Olympics logo were organized by the authoritarian regime watched the beginning of the relay in Pyongyang, some waving Chinese flags. The event was presided over by the head of the country's parliament, Kim Yong Nam. The North, an ally of China, has been critical of disruptions to the torch relay elsewhere and has supported Beijing in its actions against protests in Tibet. Kim passed the torch to the first runner Pak Du Ik, who played on North Korea's 1966 World Cup soccer team, as he began the 19-kilometre route through Pyongyang. The relay began from the large sculpted flame of the obelisk of the Juche Tower, which commemorates the national ideology of Juche, or "self-reliance", created by the country's late founding President Kim Il Sung, father of leader Kim Jong Il, who did not attend.

Question: When did the torch arrive in the birthplace of Ri Hyon-ju?
Answer: April 28
North Korea: The event was held in Pyongyang on April 28. It was the first time that the Olympic torch has traveled to North Korea. A crowd of thousands waving pink paper flowers and small flags with the Beijing Olympics logo were organized by the authoritarian regime watched the beginning of the relay in Pyongyang, some waving Chinese flags. The event was presided over by the head of the country's parliament, Kim Yong Nam. The North, an ally of China, has been critical of disruptions to the torch relay elsewhere and has supported Beijing in its actions against protests in Tibet. Kim passed the torch to the first runner Pak Du Ik, who played on North Korea's 1966 World Cup soccer team, as he began the 19-kilometre route through Pyongyang. The relay began from the large sculpted flame of the obelisk of the Juche Tower, which commemorates the national ideology of Juche, or "self-reliance", created by the country's late founding President Kim Il Sung, father of leader Kim Jong Il, who did not attend.
Kwon Ki-ok (born Pyongyang, Korea, 11 January 1901 – 19 April 1988) was the first Korean female aviator, as well as being the first female pilot in China.

Question: When did the torch arrive in Kwon Ki-ok's birthplace?
Answer: April 28
The former location in Mesa is actually the second HoHoKam Park; the first was built in 1976 as the spring-training home of the Oakland Athletics who left the park in 1979. Apart from HoHoKam Park and Sloan Park the Cubs also have another Mesa training facility called Fitch Park, this complex provides 25,000 square feet (2,300 m2) of team facilities, including major league clubhouse, four practice fields, one practice infield, enclosed batting tunnels, batting cages, a maintenance facility, and administrative offices for the Cubs.
The Oakland -- Alameda County Coliseum, often referred to as the Oakland Coliseum, is a multi-purpose stadium in Oakland, California, United States, which is home to both the Oakland Athletics of Major League Baseball (MLB) and the Oakland Raiders of the National Football League (NFL). It opened in 1966 and is the only remaining stadium in the United States that is shared by professional football and baseball teams. The Coliseum was also home to some games of the San Jose Earthquakes of Major League Soccer in 2008 -- 2009 and hosted games at the 2009 CONCACAF Gold Cup. The Oakland -- Alameda County Coliseum complex consists of the stadium and the neighboring Oracle Arena.

Question: When was the spring training home of the team sharing a field with the Raiders built?
Answer: 1976
North Korea: The event was held in Pyongyang on April 28. It was the first time that the Olympic torch has traveled to North Korea. A crowd of thousands waving pink paper flowers and small flags with the Beijing Olympics logo were organized by the authoritarian regime watched the beginning of the relay in Pyongyang, some waving Chinese flags. The event was presided over by the head of the country's parliament, Kim Yong Nam. The North, an ally of China, has been critical of disruptions to the torch relay elsewhere and has supported Beijing in its actions against protests in Tibet. Kim passed the torch to the first runner Pak Du Ik, who played on North Korea's 1966 World Cup soccer team, as he began the 19-kilometre route through Pyongyang. The relay began from the large sculpted flame of the obelisk of the Juche Tower, which commemorates the national ideology of Juche, or "self-reliance", created by the country's late founding President Kim Il Sung, father of leader Kim Jong Il, who did not attend.
Pak Nam-chol (; born January 12, 1979 in Pyongyang) is a North Korean judoka, who competed in the men's extra-lightweight category. He finished fifth in the 60-kg division at the 2003 World Judo Championships in Osaka, Japan, and later represented his nation North Korea at the 2004 Summer Olympics.

Question: When did the torch arrive in Pak Nam-chol's birthplace?
Answer: April 28
North Korea: The event was held in Pyongyang on April 28. It was the first time that the Olympic torch has traveled to North Korea. A crowd of thousands waving pink paper flowers and small flags with the Beijing Olympics logo were organized by the authoritarian regime watched the beginning of the relay in Pyongyang, some waving Chinese flags. The event was presided over by the head of the country's parliament, Kim Yong Nam. The North, an ally of China, has been critical of disruptions to the torch relay elsewhere and has supported Beijing in its actions against protests in Tibet. Kim passed the torch to the first runner Pak Du Ik, who played on North Korea's 1966 World Cup soccer team, as he began the 19-kilometre route through Pyongyang. The relay began from the large sculpted flame of the obelisk of the Juche Tower, which commemorates the national ideology of Juche, or "self-reliance", created by the country's late founding President Kim Il Sung, father of leader Kim Jong Il, who did not attend.
The Aquariums of Pyongyang, by Kang Chol-hwan and Pierre Rigoulot, is an account of the imprisonment of Kang Chol-Hwan and his family in the Yodok concentration camp in North Korea.

Question: When did the 2008 Olympic torch arrive in the birthplace of Kang Chol-hwan?
Answer: April 28
Having obtained a Bachelor's degree in French from the University of International Affairs in Pyongyang, Kang began a diplomatic career. His first significant position was as the Korean Workers' Party's deputy director for international affairs, and then director.
North Korea: The event was held in Pyongyang on April 28. It was the first time that the Olympic torch has traveled to North Korea. A crowd of thousands waving pink paper flowers and small flags with the Beijing Olympics logo were organized by the authoritarian regime watched the beginning of the relay in Pyongyang, some waving Chinese flags. The event was presided over by the head of the country's parliament, Kim Yong Nam. The North, an ally of China, has been critical of disruptions to the torch relay elsewhere and has supported Beijing in its actions against protests in Tibet. Kim passed the torch to the first runner Pak Du Ik, who played on North Korea's 1966 World Cup soccer team, as he began the 19-kilometre route through Pyongyang. The relay began from the large sculpted flame of the obelisk of the Juche Tower, which commemorates the national ideology of Juche, or "self-reliance", created by the country's late founding President Kim Il Sung, father of leader Kim Jong Il, who did not attend.

Question: When did the torch arrive in the city where Kang Sok-ju died?
Answer: April 28
North Korea: The event was held in Pyongyang on April 28. It was the first time that the Olympic torch has traveled to North Korea. A crowd of thousands waving pink paper flowers and small flags with the Beijing Olympics logo were organized by the authoritarian regime watched the beginning of the relay in Pyongyang, some waving Chinese flags. The event was presided over by the head of the country's parliament, Kim Yong Nam. The North, an ally of China, has been critical of disruptions to the torch relay elsewhere and has supported Beijing in its actions against protests in Tibet. Kim passed the torch to the first runner Pak Du Ik, who played on North Korea's 1966 World Cup soccer team, as he began the 19-kilometre route through Pyongyang. The relay began from the large sculpted flame of the obelisk of the Juche Tower, which commemorates the national ideology of Juche, or "self-reliance", created by the country's late founding President Kim Il Sung, father of leader Kim Jong Il, who did not attend.
Han Kum-ok (born 22 September 1987 in Pyongyang) is a North Korean freestyle wrestler. She competed in the freestyle 55 kg event at the 2012 Summer Olympics and was eliminated in the 1/8 finals by Jackeline Rentería.

Question: When did the torch arrive in the birthplace of Han Kum-Ok?
Answer: April 28
Ryang Chun-hwa (; ; born 12 June 1991 in Pyongyang) is a North Korean weighlifter. She competed at the 2012 Summer Olympics in the Women's 48 kg, winning the Bronze medal. Ryang represents the April 25 Sports Team. She won the silver medal at the 2011 Summer Universiade.
North Korea: The event was held in Pyongyang on April 28. It was the first time that the Olympic torch has traveled to North Korea. A crowd of thousands waving pink paper flowers and small flags with the Beijing Olympics logo were organized by the authoritarian regime watched the beginning of the relay in Pyongyang, some waving Chinese flags. The event was presided over by the head of the country's parliament, Kim Yong Nam. The North, an ally of China, has been critical of disruptions to the torch relay elsewhere and has supported Beijing in its actions against protests in Tibet. Kim passed the torch to the first runner Pak Du Ik, who played on North Korea's 1966 World Cup soccer team, as he began the 19-kilometre route through Pyongyang. The relay began from the large sculpted flame of the obelisk of the Juche Tower, which commemorates the national ideology of Juche, or "self-reliance", created by the country's late founding President Kim Il Sung, father of leader Kim Jong Il, who did not attend.

Question: When did Ryang Chun-hwa's birthplace experience the arrival of the torch?
Answer: April 28
North Korea: The event was held in Pyongyang on April 28. It was the first time that the Olympic torch has traveled to North Korea. A crowd of thousands waving pink paper flowers and small flags with the Beijing Olympics logo were organized by the authoritarian regime watched the beginning of the relay in Pyongyang, some waving Chinese flags. The event was presided over by the head of the country's parliament, Kim Yong Nam. The North, an ally of China, has been critical of disruptions to the torch relay elsewhere and has supported Beijing in its actions against protests in Tibet. Kim passed the torch to the first runner Pak Du Ik, who played on North Korea's 1966 World Cup soccer team, as he began the 19-kilometre route through Pyongyang. The relay began from the large sculpted flame of the obelisk of the Juche Tower, which commemorates the national ideology of Juche, or "self-reliance", created by the country's late founding President Kim Il Sung, father of leader Kim Jong Il, who did not attend.
He was born in Pyongyang in 1933. He graduated from Mangyongdae Revolutionary School and the "Soviet Union Naval Academy". Although the North Korean army mainly depends on ground troops, Admiral Kim who was commander of the Korean People's Navy since 1982 was installed in the highest military position of the head of the Minister of the People's Armed Forces in 1998, filling a vacancy left by Choe Kwang, who died in February 1997, something that indicated that he was fully trusted by Kim Jong-il. Kim Il-chol participated as a senior delegate in the inter-Korean Defense Minister’s meeting held for the first time since the division of the Korean peninsula in September 2000.

Question: When did the torch arrive in the birthplace of Kim Il-chol?
Answer: April 28
North Korea: The event was held in Pyongyang on April 28. It was the first time that the Olympic torch has traveled to North Korea. A crowd of thousands waving pink paper flowers and small flags with the Beijing Olympics logo were organized by the authoritarian regime watched the beginning of the relay in Pyongyang, some waving Chinese flags. The event was presided over by the head of the country's parliament, Kim Yong Nam. The North, an ally of China, has been critical of disruptions to the torch relay elsewhere and has supported Beijing in its actions against protests in Tibet. Kim passed the torch to the first runner Pak Du Ik, who played on North Korea's 1966 World Cup soccer team, as he began the 19-kilometre route through Pyongyang. The relay began from the large sculpted flame of the obelisk of the Juche Tower, which commemorates the national ideology of Juche, or "self-reliance", created by the country's late founding President Kim Il Sung, father of leader Kim Jong Il, who did not attend.
Sungin Hall (Hangul: 숭인전, Hanja: 崇仁殿) built in 1325 is one of the earliest shrines located at Chongno-dong, Chung-guyok, Pyongyang, North Korea. It has been registered as No.4 National Treasure of North Korea. The hall faces Sungnyong Hall of Pyongyang students' palace.

Question: When did the torch arrive in the city where Chung-guyok is located?
Answer: April 28
Sadong-guyŏk, or Sadong District, is one of the 19 guyŏk, and one of the six, that constitute East Pyongyang, North Korea. It is on the eastern bank of the Taedong River, and the mouth of the Nam River. It is north of Ryŏkp'o-guyŏk (Ryokpho District), east of Taedonggang-guyŏk (Taedonggang District) and north east of Tongdaewŏn-guyŏk. It was established in September 1959.
North Korea: The event was held in Pyongyang on April 28. It was the first time that the Olympic torch has traveled to North Korea. A crowd of thousands waving pink paper flowers and small flags with the Beijing Olympics logo were organized by the authoritarian regime watched the beginning of the relay in Pyongyang, some waving Chinese flags. The event was presided over by the head of the country's parliament, Kim Yong Nam. The North, an ally of China, has been critical of disruptions to the torch relay elsewhere and has supported Beijing in its actions against protests in Tibet. Kim passed the torch to the first runner Pak Du Ik, who played on North Korea's 1966 World Cup soccer team, as he began the 19-kilometre route through Pyongyang. The relay began from the large sculpted flame of the obelisk of the Juche Tower, which commemorates the national ideology of Juche, or "self-reliance", created by the country's late founding President Kim Il Sung, father of leader Kim Jong Il, who did not attend.

Question: When did the torch arrive in the city Sadong-guyok is located?
Answer: April 28
North Korea: The event was held in Pyongyang on April 28. It was the first time that the Olympic torch has traveled to North Korea. A crowd of thousands waving pink paper flowers and small flags with the Beijing Olympics logo were organized by the authoritarian regime watched the beginning of the relay in Pyongyang, some waving Chinese flags. The event was presided over by the head of the country's parliament, Kim Yong Nam. The North, an ally of China, has been critical of disruptions to the torch relay elsewhere and has supported Beijing in its actions against protests in Tibet. Kim passed the torch to the first runner Pak Du Ik, who played on North Korea's 1966 World Cup soccer team, as he began the 19-kilometre route through Pyongyang. The relay began from the large sculpted flame of the obelisk of the Juche Tower, which commemorates the national ideology of Juche, or "self-reliance", created by the country's late founding President Kim Il Sung, father of leader Kim Jong Il, who did not attend.
Tongdaewŏn-guyŏk or Tongdaewon District is one of the 20 wards, and one of the six that constitute East Pyongyang, North Korea. It sits on the eastern bank of the Taedong River. It is north of Sŏn'gyo-guyŏk (Songyo District), south of Taedonggang-guyŏk (Taedonggang District) and west of Sadong-guyŏk (Sadong District) and Ryŏkp'o-guyŏk (Ryokpho District). It was established in October 1960.

Question: When did the torch arrive in the city where Tongdaewon-guyok is located?
Answer: April 28
Sŏn'gyo-guyŏk or Songyo District is one of the 19 guyŏk that constitute the city of Pyongyang, North Korea. It is on the eastern bank of the Taedong River at the center of East Pyongyang. It is bordered to the south by Nakrang-guyok, to the north by Tongdaewon-guyok and to the east by Ryokpo and Sadong-guyoks. It was established in September 1959.
North Korea: The event was held in Pyongyang on April 28. It was the first time that the Olympic torch has traveled to North Korea. A crowd of thousands waving pink paper flowers and small flags with the Beijing Olympics logo were organized by the authoritarian regime watched the beginning of the relay in Pyongyang, some waving Chinese flags. The event was presided over by the head of the country's parliament, Kim Yong Nam. The North, an ally of China, has been critical of disruptions to the torch relay elsewhere and has supported Beijing in its actions against protests in Tibet. Kim passed the torch to the first runner Pak Du Ik, who played on North Korea's 1966 World Cup soccer team, as he began the 19-kilometre route through Pyongyang. The relay began from the large sculpted flame of the obelisk of the Juche Tower, which commemorates the national ideology of Juche, or "self-reliance", created by the country's late founding President Kim Il Sung, father of leader Kim Jong Il, who did not attend.

Question: When did the torch arrive in the city Songyo-guyok is located?
Answer: April 28
The Firebird (French: L'Oiseau de feu; Russian: Жар - птица, translit. Zhar - ptitsa) is a ballet and orchestral concert work by the Russian composer Igor Stravinsky. It was written for the 1910 Paris season of Sergei Diaghilev's Ballets Russes company; the original choreography was by Michel Fokine, with a scenario by Alexandre Benois and Fokine based on the Russian fairy tales of the Firebird and the blessing and curse it possesses for its owner. When first performed at the Opéra de Paris on 25 June 1910, the work was an instant success with both audience and critics.
Vera de Bosset Stravinsky (January 7, 1889 – September 17, 1982) was a Russian-born American dancer and artist. She is better known as the mistress and, ultimately, second wife of the Russian composer Igor Stravinsky, who married her in 1940.

Question: Who is the spouse of the Russian composer that created the music for the ballet the firebird?
Answer: Vera de Bosset