Input: Article: The spectrum emitted by a blackbody radiator at temperatures of incandescent bulbs does not match the sensitivity characteristics of the human eye; the light emitted does not appear white, and most is not in the range of wavelengths at which the eye is most sensitive. Tungsten filaments radiate mostly infrared radiation at temperatures where they remain solid – below 3,695 K (3,422 °C; 6,191 °F). Donald L. Klipstein explains it this way: "An ideal thermal radiator produces visible light most efficiently at temperatures around 6,300 °C (6,600 K; 11,400 °F). Even at this high temperature, a lot of the radiation is either infrared or ultraviolet, and the theoretical luminous efficacy (LER) is 95 lumens per watt." No known material can be used as a filament at this ideal temperature, which is hotter than the sun's surface. An upper limit for incandescent lamp luminous efficacy (LER) is around 52 lumens per watt, the theoretical value emitted by tungsten at its melting point.

Now answer this question: What is the upper limit for LER of an incandescent lamp?

Output: 52 lumens per watt

Input: Article: The Rose Garden (Rosengarten), from which a scenic panoramic view of the medieval town centre can be enjoyed, is a well-kept Rosarium on a hill, converted into a park from a former cemetery in 1913.

Now answer this question: What is the Rose Garden also known as?

Output: Rosengarten

Input: Article: The national economy grew significantly through agrarian reform, major modernization projects such as the Helwan steel works and the Aswan Dam, and nationalization schemes such as that of the Suez Canal. However, the marked economic growth of the early 1960s took a downturn for the remainder of the decade, only recovering in 1970. Egypt experienced a "golden age" of culture during Nasser's presidency, according to historian Joel Gordon, particularly in film, television, theater, radio, literature, fine arts, comedy, poetry, and music. Egypt under Nasser dominated the Arab world in these fields, producing cultural icons.

Now answer this question: How was Egyptian culture under Nasser refered to?

Output:
golden age