id stringlengths 24 24 | title stringclasses 78
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5acd345807355d001abf3947 | BeiDou_Navigation_Satellite_System | The original idea of a Chinese satellite navigation system was conceived by Chen Fangyun and his colleagues in the 1980s. According to the China National Space Administration, the development of the system would be carried out in three steps: | When did Chen Fangyun come up with the idea for an ocean navigation system? | {
"text": [],
"answer_start": []
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5acd345807355d001abf3948 | BeiDou_Navigation_Satellite_System | The original idea of a Chinese satellite navigation system was conceived by Chen Fangyun and his colleagues in the 1980s. According to the China National Space Administration, the development of the system would be carried out in three steps: | The American National Space Administration said the satellite navigation system would be developed in how many steps? | {
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5acd345807355d001abf3949 | BeiDou_Navigation_Satellite_System | The original idea of a Chinese satellite navigation system was conceived by Chen Fangyun and his colleagues in the 1980s. According to the China National Space Administration, the development of the system would be carried out in three steps: | What idea did Chen Fangyun come up with in 1924? | {
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5acd345807355d001abf394a | BeiDou_Navigation_Satellite_System | The original idea of a Chinese satellite navigation system was conceived by Chen Fangyun and his colleagues in the 1980s. According to the China National Space Administration, the development of the system would be carried out in three steps: | Who said the system would be developed in four total steps? | {
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56e1030ae3433e1400422a9c | BeiDou_Navigation_Satellite_System | In February 2007, the fourth and last satellite of the BeiDou-1 system, BeiDou-1D (sometimes called BeiDou-2A, serving as a backup satellite), was sent up into space. It was reported that the satellite had suffered from a control system malfunction but was then fully restored. | When was the fourth satellite for the BeiDou-1 system launched? | {
"text": [
"February 2007"
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3
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56e1030ae3433e1400422a9d | BeiDou_Navigation_Satellite_System | In February 2007, the fourth and last satellite of the BeiDou-1 system, BeiDou-1D (sometimes called BeiDou-2A, serving as a backup satellite), was sent up into space. It was reported that the satellite had suffered from a control system malfunction but was then fully restored. | What is the name of the fourth BeiDou-1 satellite? | {
"text": [
"BeiDou-1D"
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72
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56e1030ae3433e1400422a9e | BeiDou_Navigation_Satellite_System | In February 2007, the fourth and last satellite of the BeiDou-1 system, BeiDou-1D (sometimes called BeiDou-2A, serving as a backup satellite), was sent up into space. It was reported that the satellite had suffered from a control system malfunction but was then fully restored. | What is the BeiDou-1D satellite sometimes called? | {
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"BeiDou-2A"
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100
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56e1030ae3433e1400422a9f | BeiDou_Navigation_Satellite_System | In February 2007, the fourth and last satellite of the BeiDou-1 system, BeiDou-1D (sometimes called BeiDou-2A, serving as a backup satellite), was sent up into space. It was reported that the satellite had suffered from a control system malfunction but was then fully restored. | What is the purpose of the BeiDou-1D satellite? | {
"text": [
"serving as a backup satellite"
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111
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56e1030ae3433e1400422aa0 | BeiDou_Navigation_Satellite_System | In February 2007, the fourth and last satellite of the BeiDou-1 system, BeiDou-1D (sometimes called BeiDou-2A, serving as a backup satellite), was sent up into space. It was reported that the satellite had suffered from a control system malfunction but was then fully restored. | What happened to the BeiDou-1D satellite that needed to be repaired? | {
"text": [
"a control system malfunction"
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220
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5acd36d207355d001abf396e | BeiDou_Navigation_Satellite_System | In February 2007, the fourth and last satellite of the BeiDou-1 system, BeiDou-1D (sometimes called BeiDou-2A, serving as a backup satellite), was sent up into space. It was reported that the satellite had suffered from a control system malfunction but was then fully restored. | In which month of 2007 was the fifth satellite for the BeiDou-1 system launched? | {
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5acd36d207355d001abf396f | BeiDou_Navigation_Satellite_System | In February 2007, the fourth and last satellite of the BeiDou-1 system, BeiDou-1D (sometimes called BeiDou-2A, serving as a backup satellite), was sent up into space. It was reported that the satellite had suffered from a control system malfunction but was then fully restored. | What is the official name of the fifth BeiDou-2 satellite? | {
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} | [
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... |
5acd36d207355d001abf3970 | BeiDou_Navigation_Satellite_System | In February 2007, the fourth and last satellite of the BeiDou-1 system, BeiDou-1D (sometimes called BeiDou-2A, serving as a backup satellite), was sent up into space. It was reported that the satellite had suffered from a control system malfunction but was then fully restored. | Which satellite serves as a front-end satellite? | {
"text": [],
"answer_start": []
} | [
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5acd36d207355d001abf3971 | BeiDou_Navigation_Satellite_System | In February 2007, the fourth and last satellite of the BeiDou-1 system, BeiDou-1D (sometimes called BeiDou-2A, serving as a backup satellite), was sent up into space. It was reported that the satellite had suffered from a control system malfunction but was then fully restored. | Which satellite is sometimes called BeiDou-2C? | {
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5acd36d207355d001abf3972 | BeiDou_Navigation_Satellite_System | In February 2007, the fourth and last satellite of the BeiDou-1 system, BeiDou-1D (sometimes called BeiDou-2A, serving as a backup satellite), was sent up into space. It was reported that the satellite had suffered from a control system malfunction but was then fully restored. | According to reports, the satellite had issues with what system and was never fully restored? | {
"text": [],
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} | [
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56e106b3e3433e1400422af0 | BeiDou_Navigation_Satellite_System | Unlike the American GPS, Russian GLONASS, and European Galileo systems, which use medium Earth orbit satellites, BeiDou-1 uses satellites in geostationary orbit. This means that the system does not require a large constellation of satellites, but it also limits the coverage to areas on Earth where the satellites are visible. The area that can be serviced is from longitude 70°E to 140°E and from latitude 5°N to 55°N. A frequency of the system is 2491.75 MHz. | What type of satellites does the American GPS system use? | {
"text": [
"medium Earth orbit satellites"
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82
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56e106b3e3433e1400422af1 | BeiDou_Navigation_Satellite_System | Unlike the American GPS, Russian GLONASS, and European Galileo systems, which use medium Earth orbit satellites, BeiDou-1 uses satellites in geostationary orbit. This means that the system does not require a large constellation of satellites, but it also limits the coverage to areas on Earth where the satellites are visible. The area that can be serviced is from longitude 70°E to 140°E and from latitude 5°N to 55°N. A frequency of the system is 2491.75 MHz. | What type of satellites does the BeiDou-1 system use? | {
"text": [
"satellites in geostationary orbit"
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127
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56e106b3e3433e1400422af2 | BeiDou_Navigation_Satellite_System | Unlike the American GPS, Russian GLONASS, and European Galileo systems, which use medium Earth orbit satellites, BeiDou-1 uses satellites in geostationary orbit. This means that the system does not require a large constellation of satellites, but it also limits the coverage to areas on Earth where the satellites are visible. The area that can be serviced is from longitude 70°E to 140°E and from latitude 5°N to 55°N. A frequency of the system is 2491.75 MHz. | What is the purpose of the BeiDou-1 system using stallites in geostationary orbit? | {
"text": [
"the system does not require a large constellation of satellites"
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178
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56e106b3e3433e1400422af3 | BeiDou_Navigation_Satellite_System | Unlike the American GPS, Russian GLONASS, and European Galileo systems, which use medium Earth orbit satellites, BeiDou-1 uses satellites in geostationary orbit. This means that the system does not require a large constellation of satellites, but it also limits the coverage to areas on Earth where the satellites are visible. The area that can be serviced is from longitude 70°E to 140°E and from latitude 5°N to 55°N. A frequency of the system is 2491.75 MHz. | What service area is covered by the BeiDou-1 system? | {
"text": [
"from longitude 70°E to 140°E and from latitude 5°N to 55°N"
],
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360
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56e106b3e3433e1400422af4 | BeiDou_Navigation_Satellite_System | Unlike the American GPS, Russian GLONASS, and European Galileo systems, which use medium Earth orbit satellites, BeiDou-1 uses satellites in geostationary orbit. This means that the system does not require a large constellation of satellites, but it also limits the coverage to areas on Earth where the satellites are visible. The area that can be serviced is from longitude 70°E to 140°E and from latitude 5°N to 55°N. A frequency of the system is 2491.75 MHz. | What is the frequency of the BeiDou-1 system? | {
"text": [
"2491.75 MHz"
],
"answer_start": [
449
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5acd3eef07355d001abf3a24 | BeiDou_Navigation_Satellite_System | Unlike the American GPS, Russian GLONASS, and European Galileo systems, which use medium Earth orbit satellites, BeiDou-1 uses satellites in geostationary orbit. This means that the system does not require a large constellation of satellites, but it also limits the coverage to areas on Earth where the satellites are visible. The area that can be serviced is from longitude 70°E to 140°E and from latitude 5°N to 55°N. A frequency of the system is 2491.75 MHz. | BeiDou-1, along with American GPS, use which type of satellites? | {
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"answer_start": []
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5acd3eef07355d001abf3a25 | BeiDou_Navigation_Satellite_System | Unlike the American GPS, Russian GLONASS, and European Galileo systems, which use medium Earth orbit satellites, BeiDou-1 uses satellites in geostationary orbit. This means that the system does not require a large constellation of satellites, but it also limits the coverage to areas on Earth where the satellites are visible. The area that can be serviced is from longitude 70°E to 140°E and from latitude 5°N to 55°N. A frequency of the system is 2491.75 MHz. | BeiDou-1, along with Russian GLONASS, use which type of satellites? | {
"text": [],
"answer_start": []
} | [
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5acd3eef07355d001abf3a26 | BeiDou_Navigation_Satellite_System | Unlike the American GPS, Russian GLONASS, and European Galileo systems, which use medium Earth orbit satellites, BeiDou-1 uses satellites in geostationary orbit. This means that the system does not require a large constellation of satellites, but it also limits the coverage to areas on Earth where the satellites are visible. The area that can be serviced is from longitude 70°E to 140°E and from latitude 5°N to 55°N. A frequency of the system is 2491.75 MHz. | BeiDou-1, along with European Galileo systems, use which type of satellites? | {
"text": [],
"answer_start": []
} | [
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5acd3eef07355d001abf3a27 | BeiDou_Navigation_Satellite_System | Unlike the American GPS, Russian GLONASS, and European Galileo systems, which use medium Earth orbit satellites, BeiDou-1 uses satellites in geostationary orbit. This means that the system does not require a large constellation of satellites, but it also limits the coverage to areas on Earth where the satellites are visible. The area that can be serviced is from longitude 70°E to 140°E and from latitude 5°N to 55°N. A frequency of the system is 2491.75 MHz. | Which is a frequency of the vehicular system? | {
"text": [],
"answer_start": []
} | [
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5acd3eef07355d001abf3a28 | BeiDou_Navigation_Satellite_System | Unlike the American GPS, Russian GLONASS, and European Galileo systems, which use medium Earth orbit satellites, BeiDou-1 uses satellites in geostationary orbit. This means that the system does not require a large constellation of satellites, but it also limits the coverage to areas on Earth where the satellites are visible. The area that can be serviced is from longitude 70°E to 140°E and from latitude 5°N to 55°N. A frequency of the system is 2491.75 MHz. | Although, BeiDou-1 uses medium Earth orbit satellites, American GPS systems use which kind? | {
"text": [],
"answer_start": []
} | [
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56e1161ccd28a01900c67579 | BeiDou_Navigation_Satellite_System | Compass-M1 is an experimental satellite launched for signal testing and validation and for the frequency filing on 14 April 2007. The role of Compass-M1 for Compass is similar to the role of the GIOVE satellites for the Galileo system. The orbit of Compass-M1 is nearly circular, has an altitude of 21,150 km and an inclination of 55.5 degrees. | When was the Compass-M1 satellite launched? | {
"text": [
"14 April 2007"
],
"answer_start": [
115
]
} | [
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56e1161ccd28a01900c6757a | BeiDou_Navigation_Satellite_System | Compass-M1 is an experimental satellite launched for signal testing and validation and for the frequency filing on 14 April 2007. The role of Compass-M1 for Compass is similar to the role of the GIOVE satellites for the Galileo system. The orbit of Compass-M1 is nearly circular, has an altitude of 21,150 km and an inclination of 55.5 degrees. | What is the purpose of the Compass-M1 satellite? | {
"text": [
"for signal testing and validation and for the frequency filing"
],
"answer_start": [
49
]
} | [
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0.04812038689851761,
... |
56e1161ccd28a01900c6757b | BeiDou_Navigation_Satellite_System | Compass-M1 is an experimental satellite launched for signal testing and validation and for the frequency filing on 14 April 2007. The role of Compass-M1 for Compass is similar to the role of the GIOVE satellites for the Galileo system. The orbit of Compass-M1 is nearly circular, has an altitude of 21,150 km and an inclination of 55.5 degrees. | The purpose of the Compass-M1 satellite is similar to the purpose of what other satellite? | {
"text": [
"the GIOVE satellites for the Galileo system"
],
"answer_start": [
191
]
} | [
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0.04812038689851761,
... |
56e1161ccd28a01900c6757c | BeiDou_Navigation_Satellite_System | Compass-M1 is an experimental satellite launched for signal testing and validation and for the frequency filing on 14 April 2007. The role of Compass-M1 for Compass is similar to the role of the GIOVE satellites for the Galileo system. The orbit of Compass-M1 is nearly circular, has an altitude of 21,150 km and an inclination of 55.5 degrees. | What is the altitude of the Compass-M1 satellite? | {
"text": [
"21,150 km"
],
"answer_start": [
299
]
} | [
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... |
56e1161ccd28a01900c6757d | BeiDou_Navigation_Satellite_System | Compass-M1 is an experimental satellite launched for signal testing and validation and for the frequency filing on 14 April 2007. The role of Compass-M1 for Compass is similar to the role of the GIOVE satellites for the Galileo system. The orbit of Compass-M1 is nearly circular, has an altitude of 21,150 km and an inclination of 55.5 degrees. | What is the inclination of the Compass-M1 satellite? | {
"text": [
"55.5 degrees"
],
"answer_start": [
331
]
} | [
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... |
5acd4a1c07355d001abf3c14 | BeiDou_Navigation_Satellite_System | Compass-M1 is an experimental satellite launched for signal testing and validation and for the frequency filing on 14 April 2007. The role of Compass-M1 for Compass is similar to the role of the GIOVE satellites for the Galileo system. The orbit of Compass-M1 is nearly circular, has an altitude of 21,150 km and an inclination of 55.5 degrees. | Compass-L1 is an experimental satellite launched during which month of 2007? | {
"text": [],
"answer_start": []
} | [
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... |
5acd4a1c07355d001abf3c15 | BeiDou_Navigation_Satellite_System | Compass-M1 is an experimental satellite launched for signal testing and validation and for the frequency filing on 14 April 2007. The role of Compass-M1 for Compass is similar to the role of the GIOVE satellites for the Galileo system. The orbit of Compass-M1 is nearly circular, has an altitude of 21,150 km and an inclination of 55.5 degrees. | Compass-L1 is an experimental satellite launched during which year? | {
"text": [],
"answer_start": []
} | [
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0.04812038689851761,
... |
5acd4a1c07355d001abf3c16 | BeiDou_Navigation_Satellite_System | Compass-M1 is an experimental satellite launched for signal testing and validation and for the frequency filing on 14 April 2007. The role of Compass-M1 for Compass is similar to the role of the GIOVE satellites for the Galileo system. The orbit of Compass-M1 is nearly circular, has an altitude of 21,150 km and an inclination of 55.5 degrees. | Compass-L1 is an experimental satellite launched on what day? | {
"text": [],
"answer_start": []
} | [
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0.04812038689851761,
... |
5acd4a1c07355d001abf3c17 | BeiDou_Navigation_Satellite_System | Compass-M1 is an experimental satellite launched for signal testing and validation and for the frequency filing on 14 April 2007. The role of Compass-M1 for Compass is similar to the role of the GIOVE satellites for the Galileo system. The orbit of Compass-M1 is nearly circular, has an altitude of 21,150 km and an inclination of 55.5 degrees. | What satellites role is the Compass-L3 similar to? | {
"text": [],
"answer_start": []
} | [
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0.04829079285264015,
-0.014897126704454422,
0.04812038689851761,
... |
5acd4a1c07355d001abf3c18 | BeiDou_Navigation_Satellite_System | Compass-M1 is an experimental satellite launched for signal testing and validation and for the frequency filing on 14 April 2007. The role of Compass-M1 for Compass is similar to the role of the GIOVE satellites for the Galileo system. The orbit of Compass-M1 is nearly circular, has an altitude of 21,150 km and an inclination of 55.5 degrees. | Compass M-1 has a square orbit and an altitude of how many KM? | {
"text": [],
"answer_start": []
} | [
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0.04829079285264015,
-0.014897126704454422,
0.04812038689851761,
... |
56e11e2fcd28a01900c675fb | BeiDou_Navigation_Satellite_System | The first satellite of the second-generation system, Compass-M1 was launched in 2007. It was followed by further nine satellites during 2009-2011, achieving functional regional coverage. A total of 16 satellites were launched during this phase. | When was the Compass-M1 satellite launced? | {
"text": [
"2007"
],
"answer_start": [
80
]
} | [
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0.062902070581913,
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0.08021388202905655,
-0.0549989... |
56e11e2fcd28a01900c675fc | BeiDou_Navigation_Satellite_System | The first satellite of the second-generation system, Compass-M1 was launched in 2007. It was followed by further nine satellites during 2009-2011, achieving functional regional coverage. A total of 16 satellites were launched during this phase. | How many satellites were launched from 2009-2011? | {
"text": [
"nine"
],
"answer_start": [
113
]
} | [
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0.08021388202905655,
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56e11e2fcd28a01900c675fd | BeiDou_Navigation_Satellite_System | The first satellite of the second-generation system, Compass-M1 was launched in 2007. It was followed by further nine satellites during 2009-2011, achieving functional regional coverage. A total of 16 satellites were launched during this phase. | What was achieved by launching 9 additional satellites from 2009-2011? | {
"text": [
"functional regional coverage"
],
"answer_start": [
157
]
} | [
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56e11e2fcd28a01900c675fe | BeiDou_Navigation_Satellite_System | The first satellite of the second-generation system, Compass-M1 was launched in 2007. It was followed by further nine satellites during 2009-2011, achieving functional regional coverage. A total of 16 satellites were launched during this phase. | How many satellites were launched since 2007? | {
"text": [
"16"
],
"answer_start": [
198
]
} | [
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5acd4f4c07355d001abf3cc0 | BeiDou_Navigation_Satellite_System | The first satellite of the second-generation system, Compass-M1 was launched in 2007. It was followed by further nine satellites during 2009-2011, achieving functional regional coverage. A total of 16 satellites were launched during this phase. | When was the second satellite of the first generation system launched? | {
"text": [],
"answer_start": []
} | [
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0.08021388202905655,
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5acd4f4c07355d001abf3cc1 | BeiDou_Navigation_Satellite_System | The first satellite of the second-generation system, Compass-M1 was launched in 2007. It was followed by further nine satellites during 2009-2011, achieving functional regional coverage. A total of 16 satellites were launched during this phase. | When was the first satellite of the third generation launched? | {
"text": [],
"answer_start": []
} | [
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0.062902070581913,
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0.08021388202905655,
-0.0549989... |
5acd4f4c07355d001abf3cc2 | BeiDou_Navigation_Satellite_System | The first satellite of the second-generation system, Compass-M1 was launched in 2007. It was followed by further nine satellites during 2009-2011, achieving functional regional coverage. A total of 16 satellites were launched during this phase. | How many satellites were removed from orbit during this time? | {
"text": [],
"answer_start": []
} | [
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0.02433614432811737,
0.062902070581913,
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0.08021388202905655,
-0.0549989... |
5acd4f4c07355d001abf3cc3 | BeiDou_Navigation_Satellite_System | The first satellite of the second-generation system, Compass-M1 was launched in 2007. It was followed by further nine satellites during 2009-2011, achieving functional regional coverage. A total of 16 satellites were launched during this phase. | How many satellites were launched between 2005 and 2007? | {
"text": [],
"answer_start": []
} | [
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0.062902070581913,
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0.08021388202905655,
-0.0549989... |
5acd4f4c07355d001abf3cc4 | BeiDou_Navigation_Satellite_System | The first satellite of the second-generation system, Compass-M1 was launched in 2007. It was followed by further nine satellites during 2009-2011, achieving functional regional coverage. A total of 16 satellites were launched during this phase. | What is the name of the second generation satellite of the first system? | {
"text": [],
"answer_start": []
} | [
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0.062902070581913,
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0.08021388202905655,
-0.0549989... |
56e11f7bcd28a01900c6760d | BeiDou_Navigation_Satellite_System | In 2015, the system began its transition towards global coverage with the first launch of a new-generation of satellites, and the 17th one within the new system. | When did the BeiDou system begin transitioning to global coverage? | {
"text": [
"2015"
],
"answer_start": [
3
]
} | [
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0... |
56e11f7bcd28a01900c6760e | BeiDou_Navigation_Satellite_System | In 2015, the system began its transition towards global coverage with the first launch of a new-generation of satellites, and the 17th one within the new system. | How did the BeiDou system begin transitioning to global coverage? | {
"text": [
"with the first launch of a new-generation of satellites"
],
"answer_start": [
65
]
} | [
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5acd4fd107355d001abf3cca | BeiDou_Navigation_Satellite_System | In 2015, the system began its transition towards global coverage with the first launch of a new-generation of satellites, and the 17th one within the new system. | During what year did the system begin transformation towards serving China only? | {
"text": [],
"answer_start": []
} | [
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0... |
5acd4fd107355d001abf3ccb | BeiDou_Navigation_Satellite_System | In 2015, the system began its transition towards global coverage with the first launch of a new-generation of satellites, and the 17th one within the new system. | What did the system first launch in 2013? | {
"text": [],
"answer_start": []
} | [
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0... |
5acd4fd107355d001abf3ccc | BeiDou_Navigation_Satellite_System | In 2015, the system began its transition towards global coverage with the first launch of a new-generation of satellites, and the 17th one within the new system. | In 2007, the system began transforming towards providing what type of coverage? | {
"text": [],
"answer_start": []
} | [
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0... |
5acd4fd107355d001abf3ccd | BeiDou_Navigation_Satellite_System | In 2015, the system began its transition towards global coverage with the first launch of a new-generation of satellites, and the 17th one within the new system. | The system began its transition towards national coverage during which year? | {
"text": [],
"answer_start": []
} | [
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0.07628916949033737,
0... |
56e1207fcd28a01900c6761f | BeiDou_Navigation_Satellite_System | On July 25, 2015, the 18th and 19th satellites were successfully launched from the Xichang Satellite Launch Center, marking the first time for China to launch two satellites at once on top of a Long March 3B/Expedition-1 carrier rocket. The Expedition-1 is an independent upper stage capable of delivering one or more spacecraft into different orbits. | When were the 18th and 19th satellites for the BeiDou system launched? | {
"text": [
"July 25, 2015"
],
"answer_start": [
3
]
} | [
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0.11315033584833145,
-0.0... |
56e1207fcd28a01900c67620 | BeiDou_Navigation_Satellite_System | On July 25, 2015, the 18th and 19th satellites were successfully launched from the Xichang Satellite Launch Center, marking the first time for China to launch two satellites at once on top of a Long March 3B/Expedition-1 carrier rocket. The Expedition-1 is an independent upper stage capable of delivering one or more spacecraft into different orbits. | Where were the 18th and 19th satellites for the BeiDou system launched from? | {
"text": [
"the Xichang Satellite Launch Center"
],
"answer_start": [
79
]
} | [
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56e1207fcd28a01900c67621 | BeiDou_Navigation_Satellite_System | On July 25, 2015, the 18th and 19th satellites were successfully launched from the Xichang Satellite Launch Center, marking the first time for China to launch two satellites at once on top of a Long March 3B/Expedition-1 carrier rocket. The Expedition-1 is an independent upper stage capable of delivering one or more spacecraft into different orbits. | What were the 18th and 19th satellites for the BeiDou system launched with? | {
"text": [
"Long March 3B/Expedition-1 carrier rocket"
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194
]
} | [
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56e1207fcd28a01900c67622 | BeiDou_Navigation_Satellite_System | On July 25, 2015, the 18th and 19th satellites were successfully launched from the Xichang Satellite Launch Center, marking the first time for China to launch two satellites at once on top of a Long March 3B/Expedition-1 carrier rocket. The Expedition-1 is an independent upper stage capable of delivering one or more spacecraft into different orbits. | What is the Expedition-1? | {
"text": [
"an independent upper stage capable of delivering one or more spacecraft into different orbits"
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257
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5acd507907355d001abf3cdc | BeiDou_Navigation_Satellite_System | On July 25, 2015, the 18th and 19th satellites were successfully launched from the Xichang Satellite Launch Center, marking the first time for China to launch two satellites at once on top of a Long March 3B/Expedition-1 carrier rocket. The Expedition-1 is an independent upper stage capable of delivering one or more spacecraft into different orbits. | During which month of 2007 was the 18th satellite launched? | {
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5acd507907355d001abf3cdd | BeiDou_Navigation_Satellite_System | On July 25, 2015, the 18th and 19th satellites were successfully launched from the Xichang Satellite Launch Center, marking the first time for China to launch two satellites at once on top of a Long March 3B/Expedition-1 carrier rocket. The Expedition-1 is an independent upper stage capable of delivering one or more spacecraft into different orbits. | During which month of 2017 was the 19th satellite launched? | {
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5acd507907355d001abf3cde | BeiDou_Navigation_Satellite_System | On July 25, 2015, the 18th and 19th satellites were successfully launched from the Xichang Satellite Launch Center, marking the first time for China to launch two satellites at once on top of a Long March 3B/Expedition-1 carrier rocket. The Expedition-1 is an independent upper stage capable of delivering one or more spacecraft into different orbits. | In which year was the 20th satellite launched? | {
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5acd507907355d001abf3cdf | BeiDou_Navigation_Satellite_System | On July 25, 2015, the 18th and 19th satellites were successfully launched from the Xichang Satellite Launch Center, marking the first time for China to launch two satellites at once on top of a Long March 3B/Expedition-1 carrier rocket. The Expedition-1 is an independent upper stage capable of delivering one or more spacecraft into different orbits. | Where were the 2nd and 3rd satellites launched from? | {
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} | [
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5acd507907355d001abf3ce0 | BeiDou_Navigation_Satellite_System | On July 25, 2015, the 18th and 19th satellites were successfully launched from the Xichang Satellite Launch Center, marking the first time for China to launch two satellites at once on top of a Long March 3B/Expedition-1 carrier rocket. The Expedition-1 is an independent upper stage capable of delivering one or more spacecraft into different orbits. | This marked the third time China launched how many satellites at once? | {
"text": [],
"answer_start": []
} | [
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56e12219e3433e1400422c58 | BeiDou_Navigation_Satellite_System | The three latest satellites will jointly undergo testing of a new system of navigation signaling and inter-satellite links, and start providing navigation services when ready. | What will the three latest satellites provide after testing? | {
"text": [
"navigation services"
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144
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56e12219e3433e1400422c59 | BeiDou_Navigation_Satellite_System | The three latest satellites will jointly undergo testing of a new system of navigation signaling and inter-satellite links, and start providing navigation services when ready. | What kind of testing will be performed on the three latest satellites? | {
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56e12219e3433e1400422c5a | BeiDou_Navigation_Satellite_System | The three latest satellites will jointly undergo testing of a new system of navigation signaling and inter-satellite links, and start providing navigation services when ready. | How many satellites will be used to test a new system of navigation signaling? | {
"text": [
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5acd514807355d001abf3d0c | BeiDou_Navigation_Satellite_System | The three latest satellites will jointly undergo testing of a new system of navigation signaling and inter-satellite links, and start providing navigation services when ready. | Four of the newest satellites will undergo what? | {
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} | [
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5acd514807355d001abf3d0d | BeiDou_Navigation_Satellite_System | The three latest satellites will jointly undergo testing of a new system of navigation signaling and inter-satellite links, and start providing navigation services when ready. | The satellites will individually undergo testing of an old system of what? | {
"text": [],
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} | [
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5acd514807355d001abf3d0e | BeiDou_Navigation_Satellite_System | The three latest satellites will jointly undergo testing of a new system of navigation signaling and inter-satellite links, and start providing navigation services when ready. | The three newest terminals will start providing what type of services when ready? | {
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} | [
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5acd514807355d001abf3d0f | BeiDou_Navigation_Satellite_System | The three latest satellites will jointly undergo testing of a new system of navigation signaling and inter-satellite links, and start providing navigation services when ready. | How many satellites will undergo separate testing for new signaling units? | {
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} | [
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5acd514807355d001abf3d10 | BeiDou_Navigation_Satellite_System | The three latest satellites will jointly undergo testing of a new system of navigation signaling and inter-satellite links, and start providing navigation services when ready. | How many terminals will be undergo testing of the new system? | {
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56e14ae1e3433e1400422d6c | Boston | The city is considered highly innovative for a variety of reasons, including the presence of academia, access to venture capital, and the presence of many high-tech companies. The Route 128 corridor and Greater Boston continue to be a major center for venture capital investment, and high technology remains an important sector. | The city is innovative becaus eit has access to what type of capital? | {
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56e14ae1e3433e1400422d6d | Boston | The city is considered highly innovative for a variety of reasons, including the presence of academia, access to venture capital, and the presence of many high-tech companies. The Route 128 corridor and Greater Boston continue to be a major center for venture capital investment, and high technology remains an important sector. | There is a high presence of what type of company in the city? | {
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56e14ae1e3433e1400422d6e | Boston | The city is considered highly innovative for a variety of reasons, including the presence of academia, access to venture capital, and the presence of many high-tech companies. The Route 128 corridor and Greater Boston continue to be a major center for venture capital investment, and high technology remains an important sector. | Route 128 and Greater Boston are centers for what type of investment? | {
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56e14ae1e3433e1400422d6f | Boston | The city is considered highly innovative for a variety of reasons, including the presence of academia, access to venture capital, and the presence of many high-tech companies. The Route 128 corridor and Greater Boston continue to be a major center for venture capital investment, and high technology remains an important sector. | What remains an important sector? | {
"text": [
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56e767c200c9c71400d770c0 | Royal_Institute_of_British_Architects | Architectural design competitions are used by an organisation that plans to build a new building or refurbish an existing building. They can be used for buildings, engineering work, structures, landscape design projects or public realm artworks. A competition typically asks for architects and/or designers to submit a design proposal in response to a given Brief. The winning design will then be selected by an independent jury panel of design professionals and client representatives. The independence of the jury is vital to the fair conduct of a competition. | What are events that a company can sponsor when it is planning a new construction project or redesigning an existing one? | {
"text": [
"Architectural design competitions"
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0
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56e767c200c9c71400d770c1 | Royal_Institute_of_British_Architects | Architectural design competitions are used by an organisation that plans to build a new building or refurbish an existing building. They can be used for buildings, engineering work, structures, landscape design projects or public realm artworks. A competition typically asks for architects and/or designers to submit a design proposal in response to a given Brief. The winning design will then be selected by an independent jury panel of design professionals and client representatives. The independence of the jury is vital to the fair conduct of a competition. | What is provided to guide entrants in an architectural competition? | {
"text": [
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56e767c200c9c71400d770c2 | Royal_Institute_of_British_Architects | Architectural design competitions are used by an organisation that plans to build a new building or refurbish an existing building. They can be used for buildings, engineering work, structures, landscape design projects or public realm artworks. A competition typically asks for architects and/or designers to submit a design proposal in response to a given Brief. The winning design will then be selected by an independent jury panel of design professionals and client representatives. The independence of the jury is vital to the fair conduct of a competition. | What kinds of people generally make up the panels which judge architecture competitions? | {
"text": [
"design professionals and client representatives"
],
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438
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56e767c200c9c71400d770c3 | Royal_Institute_of_British_Architects | Architectural design competitions are used by an organisation that plans to build a new building or refurbish an existing building. They can be used for buildings, engineering work, structures, landscape design projects or public realm artworks. A competition typically asks for architects and/or designers to submit a design proposal in response to a given Brief. The winning design will then be selected by an independent jury panel of design professionals and client representatives. The independence of the jury is vital to the fair conduct of a competition. | What is necessary for the integrity of a design competition? | {
"text": [
"independence of the jury"
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491
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} | [
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56e767c200c9c71400d770c4 | Royal_Institute_of_British_Architects | Architectural design competitions are used by an organisation that plans to build a new building or refurbish an existing building. They can be used for buildings, engineering work, structures, landscape design projects or public realm artworks. A competition typically asks for architects and/or designers to submit a design proposal in response to a given Brief. The winning design will then be selected by an independent jury panel of design professionals and client representatives. The independence of the jury is vital to the fair conduct of a competition. | What kind of artistic production can be supported by design competitions? | {
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5a78ca08b73996001af5b244 | Royal_Institute_of_British_Architects | Architectural design competitions are used by an organisation that plans to build a new building or refurbish an existing building. They can be used for buildings, engineering work, structures, landscape design projects or public realm artworks. A competition typically asks for architects and/or designers to submit a design proposal in response to a given Brief. The winning design will then be selected by an independent jury panel of design professionals and client representatives. The independence of the jury is vital to the fair conduct of a competition. | What are events that a company can't sponsor when it is planning a new construction project or redesigning an existing one? | {
"text": [],
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5a78ca08b73996001af5b245 | Royal_Institute_of_British_Architects | Architectural design competitions are used by an organisation that plans to build a new building or refurbish an existing building. They can be used for buildings, engineering work, structures, landscape design projects or public realm artworks. A competition typically asks for architects and/or designers to submit a design proposal in response to a given Brief. The winning design will then be selected by an independent jury panel of design professionals and client representatives. The independence of the jury is vital to the fair conduct of a competition. | What is not provided to guide entrants in an architectural competition? | {
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5a78ca08b73996001af5b246 | Royal_Institute_of_British_Architects | Architectural design competitions are used by an organisation that plans to build a new building or refurbish an existing building. They can be used for buildings, engineering work, structures, landscape design projects or public realm artworks. A competition typically asks for architects and/or designers to submit a design proposal in response to a given Brief. The winning design will then be selected by an independent jury panel of design professionals and client representatives. The independence of the jury is vital to the fair conduct of a competition. | What kinds of people never make up the panels which judge architecture competitions? | {
"text": [],
"answer_start": []
} | [
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5a78ca08b73996001af5b247 | Royal_Institute_of_British_Architects | Architectural design competitions are used by an organisation that plans to build a new building or refurbish an existing building. They can be used for buildings, engineering work, structures, landscape design projects or public realm artworks. A competition typically asks for architects and/or designers to submit a design proposal in response to a given Brief. The winning design will then be selected by an independent jury panel of design professionals and client representatives. The independence of the jury is vital to the fair conduct of a competition. | What is unnecessary for the integrity of a design competition? | {
"text": [],
"answer_start": []
} | [
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5a78ca08b73996001af5b248 | Royal_Institute_of_British_Architects | Architectural design competitions are used by an organisation that plans to build a new building or refurbish an existing building. They can be used for buildings, engineering work, structures, landscape design projects or public realm artworks. A competition typically asks for architects and/or designers to submit a design proposal in response to a given Brief. The winning design will then be selected by an independent jury panel of design professionals and client representatives. The independence of the jury is vital to the fair conduct of a competition. | What kind of artistic production can no longer be supported by design competitions? | {
"text": [],
"answer_start": []
} | [
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0.0005798391066491604,
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56e7960900c9c71400d7730b | University_of_Kansas | KU's School of Business launched interdisciplinary management science graduate studies in operations research during Fall Semester 1965. The program provided the foundation for decision science applications supporting NASA Project Apollo Command Capsule Recovery Operations. | What was launched in 1965 by the business school at KU? | {
"text": [
"interdisciplinary management science graduate studies in operations research"
],
"answer_start": [
33
]
} | [
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0.013904253020882607,
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0.0... |
56e7960900c9c71400d7730c | University_of_Kansas | KU's School of Business launched interdisciplinary management science graduate studies in operations research during Fall Semester 1965. The program provided the foundation for decision science applications supporting NASA Project Apollo Command Capsule Recovery Operations. | What kind of applications did the interdisciplinary program help shape? | {
"text": [
"decision science"
],
"answer_start": [
177
]
} | [
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0.03531014919281006,
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0.013904253020882607,
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-0.052908606827259064,
0.0... |
56e7960900c9c71400d7730d | University_of_Kansas | KU's School of Business launched interdisciplinary management science graduate studies in operations research during Fall Semester 1965. The program provided the foundation for decision science applications supporting NASA Project Apollo Command Capsule Recovery Operations. | Which government agency used the applications that were informed by KU's interdisciplinary management program? | {
"text": [
"NASA"
],
"answer_start": [
218
]
} | [
0.014819622971117496,
0.03531014919281006,
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0.07791692018508911,
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0.013904253020882607,
-0.0059327008202672005,
-0.052908606827259064,
0.0... |
56e7960900c9c71400d7730e | University_of_Kansas | KU's School of Business launched interdisciplinary management science graduate studies in operations research during Fall Semester 1965. The program provided the foundation for decision science applications supporting NASA Project Apollo Command Capsule Recovery Operations. | What NASA program benefited from the use of decision science applications? | {
"text": [
"NASA Project Apollo Command Capsule Recovery Operations"
],
"answer_start": [
218
]
} | [
0.014819622971117496,
0.03531014919281006,
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0.07791692018508911,
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0.013904253020882607,
-0.0059327008202672005,
-0.052908606827259064,
0.0... |
56e7960900c9c71400d7730f | University_of_Kansas | KU's School of Business launched interdisciplinary management science graduate studies in operations research during Fall Semester 1965. The program provided the foundation for decision science applications supporting NASA Project Apollo Command Capsule Recovery Operations. | In what year was a new interdisciplinary management program launched at KU's School of Business? | {
"text": [
"1965"
],
"answer_start": [
131
]
} | [
0.014819622971117496,
0.03531014919281006,
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0.013904253020882607,
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-0.052908606827259064,
0.0... |
5acf605477cf76001a684ccc | University_of_Kansas | KU's School of Business launched interdisciplinary management science graduate studies in operations research during Fall Semester 1965. The program provided the foundation for decision science applications supporting NASA Project Apollo Command Capsule Recovery Operations. | What was launched in 1956 by the business school at KU? | {
"text": [],
"answer_start": []
} | [
0.014819622971117496,
0.03531014919281006,
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0.013904253020882607,
-0.0059327008202672005,
-0.052908606827259064,
0.0... |
5acf605477cf76001a684ccd | University_of_Kansas | KU's School of Business launched interdisciplinary management science graduate studies in operations research during Fall Semester 1965. The program provided the foundation for decision science applications supporting NASA Project Apollo Command Capsule Recovery Operations. | What kind of applications did the interdisciplinary program help cancel? | {
"text": [],
"answer_start": []
} | [
0.014819622971117496,
0.03531014919281006,
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0.07791692018508911,
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0.013904253020882607,
-0.0059327008202672005,
-0.052908606827259064,
0.0... |
5acf605477cf76001a684cce | University_of_Kansas | KU's School of Business launched interdisciplinary management science graduate studies in operations research during Fall Semester 1965. The program provided the foundation for decision science applications supporting NASA Project Apollo Command Capsule Recovery Operations. | Which government agency used the applications that were informed by UK's interdisciplinary management program? | {
"text": [],
"answer_start": []
} | [
0.014819622971117496,
0.03531014919281006,
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0.04557398334145546,
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0.07791692018508911,
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0.013904253020882607,
-0.0059327008202672005,
-0.052908606827259064,
0.0... |
5acf605477cf76001a684ccf | University_of_Kansas | KU's School of Business launched interdisciplinary management science graduate studies in operations research during Fall Semester 1965. The program provided the foundation for decision science applications supporting NASA Project Apollo Command Capsule Recovery Operations. | What NASA program was harmed from the use of decision science applications? | {
"text": [],
"answer_start": []
} | [
0.014819622971117496,
0.03531014919281006,
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0.04557398334145546,
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0.013904253020882607,
-0.0059327008202672005,
-0.052908606827259064,
0.0... |
5acf605477cf76001a684cd0 | University_of_Kansas | KU's School of Business launched interdisciplinary management science graduate studies in operations research during Fall Semester 1965. The program provided the foundation for decision science applications supporting NASA Project Apollo Command Capsule Recovery Operations. | In what year was a new interdisciplinary management program cancelled at KU's School of Business? | {
"text": [],
"answer_start": []
} | [
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0.03531014919281006,
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0.04557398334145546,
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0.07791692018508911,
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0.013904253020882607,
-0.0059327008202672005,
-0.052908606827259064,
0.0... |
56f86abca6d7ea1400e175eb | Southampton | The Supermarine Spitfire was designed and developed in Southampton, evolving from the Schneider trophy-winning seaplanes of the 1920s and 1930s. Its designer, R J Mitchell, lived in the Portswood area of Southampton, and his house is today marked with a blue plaque. Heavy bombing of the factory in September 1940 destroyed it as well as homes in the vicinity, killing civilians and workers. World War II hit Southampton particularly hard because of its strategic importance as a major commercial port and industrial area. Prior to the Invasion of Europe, components for a Mulberry harbour were built here. After D-Day, Southampton docks handled military cargo to help keep the Allied forces supplied, making it a key target of Luftwaffe bombing raids until late 1944. Southampton docks was featured in the television show 24: Live Another Day in Day 9: 9:00 p.m. – 10:00 p.m. | Who designed the Supermarine Spitfire? | {
"text": [
"R J Mitchell"
],
"answer_start": [
159
]
} | [
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0.03344... |
56f86abca6d7ea1400e175ec | Southampton | The Supermarine Spitfire was designed and developed in Southampton, evolving from the Schneider trophy-winning seaplanes of the 1920s and 1930s. Its designer, R J Mitchell, lived in the Portswood area of Southampton, and his house is today marked with a blue plaque. Heavy bombing of the factory in September 1940 destroyed it as well as homes in the vicinity, killing civilians and workers. World War II hit Southampton particularly hard because of its strategic importance as a major commercial port and industrial area. Prior to the Invasion of Europe, components for a Mulberry harbour were built here. After D-Day, Southampton docks handled military cargo to help keep the Allied forces supplied, making it a key target of Luftwaffe bombing raids until late 1944. Southampton docks was featured in the television show 24: Live Another Day in Day 9: 9:00 p.m. – 10:00 p.m. | What area of Southampton did Mitchell hail from? | {
"text": [
"Portswood"
],
"answer_start": [
186
]
} | [
0.02973397634923458,
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0.03794112429022789,
0.03302883729338646,
0.031727444380521774,
0.03344... |
56f86abca6d7ea1400e175ed | Southampton | The Supermarine Spitfire was designed and developed in Southampton, evolving from the Schneider trophy-winning seaplanes of the 1920s and 1930s. Its designer, R J Mitchell, lived in the Portswood area of Southampton, and his house is today marked with a blue plaque. Heavy bombing of the factory in September 1940 destroyed it as well as homes in the vicinity, killing civilians and workers. World War II hit Southampton particularly hard because of its strategic importance as a major commercial port and industrial area. Prior to the Invasion of Europe, components for a Mulberry harbour were built here. After D-Day, Southampton docks handled military cargo to help keep the Allied forces supplied, making it a key target of Luftwaffe bombing raids until late 1944. Southampton docks was featured in the television show 24: Live Another Day in Day 9: 9:00 p.m. – 10:00 p.m. | What color is the plaque that marks the Spitfire designer's house? | {
"text": [
"blue"
],
"answer_start": [
254
]
} | [
0.02973397634923458,
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0.020765384659171104,
0.005709916353225708,
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0.02036229521036148,
0.023548591881990433,
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0.010222546756267548,
0.03794112429022789,
0.03302883729338646,
0.031727444380521774,
0.03344... |
56f86abca6d7ea1400e175ee | Southampton | The Supermarine Spitfire was designed and developed in Southampton, evolving from the Schneider trophy-winning seaplanes of the 1920s and 1930s. Its designer, R J Mitchell, lived in the Portswood area of Southampton, and his house is today marked with a blue plaque. Heavy bombing of the factory in September 1940 destroyed it as well as homes in the vicinity, killing civilians and workers. World War II hit Southampton particularly hard because of its strategic importance as a major commercial port and industrial area. Prior to the Invasion of Europe, components for a Mulberry harbour were built here. After D-Day, Southampton docks handled military cargo to help keep the Allied forces supplied, making it a key target of Luftwaffe bombing raids until late 1944. Southampton docks was featured in the television show 24: Live Another Day in Day 9: 9:00 p.m. – 10:00 p.m. | In what month of 1940 did bombs destroy the factory that made Mitchell's seaplanes? | {
"text": [
"September"
],
"answer_start": [
299
]
} | [
0.02973397634923458,
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0.020765384659171104,
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0.010222546756267548,
0.03794112429022789,
0.03302883729338646,
0.031727444380521774,
0.03344... |
56f86abca6d7ea1400e175ef | Southampton | The Supermarine Spitfire was designed and developed in Southampton, evolving from the Schneider trophy-winning seaplanes of the 1920s and 1930s. Its designer, R J Mitchell, lived in the Portswood area of Southampton, and his house is today marked with a blue plaque. Heavy bombing of the factory in September 1940 destroyed it as well as homes in the vicinity, killing civilians and workers. World War II hit Southampton particularly hard because of its strategic importance as a major commercial port and industrial area. Prior to the Invasion of Europe, components for a Mulberry harbour were built here. After D-Day, Southampton docks handled military cargo to help keep the Allied forces supplied, making it a key target of Luftwaffe bombing raids until late 1944. Southampton docks was featured in the television show 24: Live Another Day in Day 9: 9:00 p.m. – 10:00 p.m. | Which forces did Southampton supply after D-Day that made it a target for many Luftwaffe air raids? | {
"text": [
"Allied forces"
],
"answer_start": [
678
]
} | [
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0.02036229521036148,
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0.010222546756267548,
0.03794112429022789,
0.03302883729338646,
0.031727444380521774,
0.03344... |
56f97afc9e9bad19000a099f | Ministry_of_Defence_(United_Kingdom) | The Strategic Defence and Security Review 2015 included £178 billion investment in new equipment and capabilities. The review set a defence policy with four primary missions for the Armed Forces: | How much was the investment in new equipment and capabilities worth? | {
"text": [
"£178 billion"
],
"answer_start": [
56
]
} | [
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0.018752196803689003,
0.019006535410881042,
-0.06308591365814209,
0.04815684258937836,
0.0089... |
56f97afc9e9bad19000a09a0 | Ministry_of_Defence_(United_Kingdom) | The Strategic Defence and Security Review 2015 included £178 billion investment in new equipment and capabilities. The review set a defence policy with four primary missions for the Armed Forces: | In which year was a £178 billion investment made? | {
"text": [
"2015"
],
"answer_start": [
42
]
} | [
0.03387754037976265,
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0.12853018939495087,
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0.018752196803689003,
0.019006535410881042,
-0.06308591365814209,
0.04815684258937836,
0.0089... |
56f97afc9e9bad19000a09a1 | Ministry_of_Defence_(United_Kingdom) | The Strategic Defence and Security Review 2015 included £178 billion investment in new equipment and capabilities. The review set a defence policy with four primary missions for the Armed Forces: | How many primary missions were included in the 2015 Review? | {
"text": [
"four"
],
"answer_start": [
152
]
} | [
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0.024463361129164696,
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0.018752196803689003,
0.019006535410881042,
-0.06308591365814209,
0.04815684258937836,
0.0089... |
56f97afc9e9bad19000a09a2 | Ministry_of_Defence_(United_Kingdom) | The Strategic Defence and Security Review 2015 included £178 billion investment in new equipment and capabilities. The review set a defence policy with four primary missions for the Armed Forces: | What is the name of the yearly statement released by the MoD? | {
"text": [
"The Strategic Defence and Security Review"
],
"answer_start": [
0
]
} | [
0.03387754037976265,
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0.036140382289886475,
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0.018752196803689003,
0.019006535410881042,
-0.06308591365814209,
0.04815684258937836,
0.0089... |
5a56cb4f6349e2001acdcf48 | Ministry_of_Defence_(United_Kingdom) | The Strategic Defence and Security Review 2015 included £178 billion investment in new equipment and capabilities. The review set a defence policy with four primary missions for the Armed Forces: | How much did the Strategic Defence and Security Review cost to produce? | {
"text": [],
"answer_start": []
} | [
0.03387754037976265,
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0.12853018939495087,
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0.024463361129164696,
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0.018752196803689003,
0.019006535410881042,
-0.06308591365814209,
0.04815684258937836,
0.0089... |
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