Problem: Please answer a question about the following article about Mandolin:
In his 1805 mandolin method, Anweisung die Mandoline von selbst zu erlernen nebst einigen Uebungsstucken von Bortolazzi, Bartolomeo Bortolazzi popularised the Cremonese mandolin, which had four single-strings and a fixed bridge, to which the strings were attached. Bortolazzi said in this book that the new wire strung mandolins were uncomfortable to play, when compared with the gut-string instruments. Also, he felt they had a "less pleasing...hard, zither-like tone" as compared to the gut string's "softer, full-singing tone." He favored the four single strings of the Cremonese instrument, which were tuned the same as the Neapolitan.
Who popularised the Cremonese Mandolin?
A: Bartolomeo Bortolazzi


Question: Read this and answer the question

Beginning in 1979, Nigerians participated in a brief return to democracy when Olusegun Obasanjo transferred power to the civilian regime of Shehu Shagari. The Shagari government became viewed as corrupt and incompetent by virtually all sectors of Nigerian society. The military coup of Muhammadu Buhari shortly after the regime's fraudulent re-election in 1984 was generally viewed as a positive development. Buhari promised major reforms, but his government fared little better than its predecessor. His regime was overthrown by another military coup in 1985.

Who led a military coup against Shagari?
Answer: Muhammadu Buhari


Problem: Albert spent the first six months of 1913 on the training ship HMS Cumberland in the West Indies and on the east coast of Canada. He was rated as a midshipman aboard HMS Collingwood on 15 September 1913, and spent three months in the Mediterranean. His fellow officers gave him the nickname "Mr. Johnson". One year after his commission, he began service in the First World War. He was mentioned in despatches for his action as a turret officer aboard Collingwood in the Battle of Jutland (31 May – 1 June 1916), an indecisive engagement with the German navy that was the largest naval action of the war. He did not see further combat, largely because of ill health caused by a duodenal ulcer, for which he had an operation in November 1917.
What was the cause of Albert's ill health in 1917?
The answer is the following: duodenal ulcer


To improve the efficiency of the lamp, the filament usually consists of multiple coils of coiled fine wire, also known as a 'coiled coil'. For a 60-watt 120-volt lamp, the uncoiled length of the tungsten filament is usually 22.8 inches (580 mm), and the filament diameter is 0.0018 inches (0.046 mm). The advantage of the coiled coil is that evaporation of the tungsten filament is at the rate of a tungsten cylinder having a diameter equal to that of the coiled coil. The coiled-coil filament evaporates more slowly than a straight filament of the same surface area and light-emitting power. As a result, the filament can then run hotter, which results in a more efficient light source, while reducing the evaporation so that the filament will last longer than a straight filament at the same temperature.
How long is a typical uncoiled tungsten filament for a 60-watt bulb?
22.8 inches


Input: Tennessee
Interstate 40 crosses the state in a west-east orientation. Its branch interstate highways include I-240 in Memphis; I-440 in Nashville; I-140 from Knoxville to Alcoa and I-640 in Knoxville. I-26, although technically an east-west interstate, runs from the North Carolina border below Johnson City to its terminus at Kingsport. I-24 is an east-west interstate that runs cross-state from Chattanooga to Clarksville. In a north-south orientation are highways I-55, I-65, I-75, and I-81. Interstate 65 crosses the state through Nashville, while Interstate 75 serves Chattanooga and Knoxville and Interstate 55 serves Memphis. Interstate 81 enters the state at Bristol and terminates at its junction with I-40 near Dandridge. I-155 is a branch highway from I-55. The only spur highway of I-75 in Tennessee is I-275, which is in Knoxville. When completed, I-69 will travel through the western part of the state, from South Fulton to Memphis. A branch interstate, I-269 also exists from Millington to Collierville.

Which city is the endpoint of I-26?
Output: Kingsport


Problem: Please answer a question about the following article about Red:
As a ray of white sunlight travels through the atmosphere to the eye, some of the colors are scattered out of the beam by air molecules and airborne particles due to Rayleigh scattering, changing the final color of the beam that is seen. Colors with a shorter wavelength, such as blue and green, scatter more strongly, and are removed from the light that finally reaches the eye. At sunrise and sunset, when the path of the sunlight through the atmosphere to the eye is longest, the blue and green components are removed almost completely, leaving the longer wavelength orange and red light. The remaining reddened sunlight can also be scattered by cloud droplets and other relatively large particles, which give the sky above the horizon its red glow.
In comparison to blue and green, what would describe the wavelength of orange or red light?
A:
longer