Problem: Please answer a question about the following article about Buckingham Palace:
Court presentations of aristocratic young ladies to the monarch took place at the palace from the reign of Edward VII. These young women were known as debutantes, and the occasiontermed their "coming out"represented their first entree into society. Debutantes wore full court dress, with three tall ostrich feathers in their hair. They entered, curtsied, and performed a choreographed backwards walk and a further curtsy, while manoeuvring a dress train of prescribed length. (The ceremony, known as an evening court, corresponded to the "court drawing rooms" of Victoria's reign.) After World War II, the ceremony was replaced by less formal afternoon receptions, usually without choreographed curtsies and court dress.
After WWII what was the coming out ceremony replaced with?
A: less formal afternoon receptions
Problem: Please answer a question about the following article about Light-emitting diode:
There are several types of multi-color white LEDs: di-, tri-, and tetrachromatic white LEDs. Several key factors that play among these different methods, include color stability, color rendering capability, and luminous efficacy. Often, higher efficiency will mean lower color rendering, presenting a trade-off between the luminous efficacy and color rendering. For example, the dichromatic white LEDs have the best luminous efficacy (120 lm/W), but the lowest color rendering capability. However, although tetrachromatic white LEDs have excellent color rendering capability, they often have poor luminous efficacy. Trichromatic white LEDs are in between, having both good luminous efficacy (>70 lm/W) and fair color rendering capability.
What is a factor that may be different in the various types of multi-color white LEDs?
A: luminous efficacy
Problem: Please answer a question about the following article about Indigenous peoples of the Americas:
The first indigenous group encountered by Columbus were the 250,000 Tainos of Hispaniola who represented the dominant culture in the Greater Antilles and the Bahamas. Within thirty years about 70% of the Tainos had died. They had no immunity to European diseases, so outbreaks of measles and smallpox ravaged their population. Increasing punishment of the Tainos for revolting against forced labour, despite measures put in place by the encomienda, which included religious education and protection from warring tribes, eventually led to the last great Taino rebellion.
Who was the first group of indigenous people Columbus encountered?
A: the 250,000 Tainos of Hispaniola
Problem: Please answer a question about the following article about Muammar Gaddafi:
Many teachers at Sabha were Egyptian, and for the first time Gaddafi had access to pan-Arab newspapers and radio broadcasts, most notably the Cairo-based Voice of the Arabs. Growing up, Gaddafi witnessed significant events rock the Arab world, including the 1948 ArabIsraeli War, the Egyptian Revolution of 1952, the Suez Crisis of 1956, and the short-lived existence of the United Arab Republic between 1958 and 1961. Gaddafi admired the political changes implemented in the Arab Republic of Egypt under his hero, President Gamal Abdel Nasser. Nasser argued for Arab nationalism; the rejection of Western colonialism, neo-colonialism, and Zionism; and a transition from capitalism to socialism. Nasser's book, Philosophy of the Revolution, was a key influence on Gaddafi; outlining how to initiate a coup, it has been described as "the inspiration and blueprint of [Gaddafi's] revolution."
What notable event occurred in 1952?
A:
Egyptian Revolution