Article: Israel has a school life expectancy of 15.5 years and a literacy rate of 97.1% according to the United Nations. The State Education Law, passed in 1953, established five types of schools: state secular, state religious, ultra orthodox, communal settlement schools, and Arab schools. The public secular is the largest school group, and is attended by the majority of Jewish and non-Arab pupils in Israel. Most Arabs send their children to schools where Arabic is the language of instruction. Education is compulsory in Israel for children between the ages of three and eighteen. Schooling is divided into three tiers primary school (grades 16), middle school (grades 79), and high school (grades 1012) culminating with Bagrut matriculation exams. Proficiency in core subjects such as mathematics, the Hebrew language, Hebrew and general literature, the English language, history, Biblical scripture and civics is necessary to receive a Bagrut certificate. In Arab, Christian and Druze schools, the exam on Biblical studies is replaced by an exam on Muslim, Christian or Druze heritage. Christian Arabs are one of the most educated groups in Israel. Maariv have describe the Christian Arabs sectors as "the most successful in education system", since Christian Arabs fared the best in terms of education in comparison to any other group receiving an education in Israel. Israeli children from Russian-speaking families have a higher bagrut pass rate at high-school level. Although amongst immigrant children born in the FSU, the bagrut pass rate is highest amongst those families from Western FSU states of Russia, Ukraine, Belarus and Moldova (at 62.6%), and lower amongst those from Central Asian and Caucasian FSU states. In 2003, over half of all Israeli twelfth graders earned a matriculation certificate.

Question: What is the literacy rate in Israel?
Ans: 97.1%

Here is a question about this article: In 1931, RCA Victor launched the first commercially available vinyl long-playing record, marketed as program-transcription discs. These revolutionary discs were designed for playback at 33 13 rpm and pressed on a 30 cm diameter flexible plastic disc, with a duration of about ten minutes playing time per side. RCA Victor's early introduction of a long-play disc was a commercial failure for several reasons including the lack of affordable, reliable consumer playback equipment and consumer wariness during the Great Depression. Because of financial hardships that plagued the recording industry during that period (and RCA's own parched revenues), Victor's long-playing records were discontinued by early 1933.
What is the answer to this question: When did RCA Victor release long play discs?
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So... 1931

The problem: Answer a question about this article:
In September 1982, Prime minister Margaret Thatcher travelled to Beijing to negotiate with the Chinese government on the future of Britain's last major and most populous overseas territory, Hong Kong. Under the terms of the 1842 Treaty of Nanking, Hong Kong Island itself had been ceded to Britain in perpetuity, but the vast majority of the colony was constituted by the New Territories, which had been acquired under a 99-year lease in 1898, due to expire in 1997. Thatcher, seeing parallels with the Falkland Islands, initially wished to hold Hong Kong and proposed British administration with Chinese sovereignty, though this was rejected by China. A deal was reached in 1984under the terms of the Sino-British Joint Declaration, Hong Kong would become a special administrative region of the People's Republic of China, maintaining its way of life for at least 50 years. The handover ceremony in 1997 marked for many, including Charles, Prince of Wales, who was in attendance, "the end of Empire".
When was the Sino-British Joint Declaration?
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The answer: 1984

Problem: Please answer a question about the following article about Middle Ages:
The political structure of Western Europe changed with the end of the united Roman Empire. Although the movements of peoples during this period are usually described as "invasions", they were not just military expeditions but migrations of entire peoples into the empire. Such movements were aided by the refusal of the western Roman elites to support the army or pay the taxes that would have allowed the military to suppress the migration. The emperors of the 5th century were often controlled by military strongmen such as Stilicho (d. 408), Aspar (d. 471), Ricimer (d. 472), or Gundobad (d. 516), who were partly or fully of non-Roman background. When the line of western emperors ceased, many of the kings who replaced them were from the same background. Intermarriage between the new kings and the Roman elites was common. This led to a fusion of Roman culture with the customs of the invading tribes, including the popular assemblies that allowed free male tribal members more say in political matters than was common in the Roman state. Material artefacts left by the Romans and the invaders are often similar, and tribal items were often modelled on Roman objects. Much of the scholarly and written culture of the new kingdoms was also based on Roman intellectual traditions. An important difference was the gradual loss of tax revenue by the new polities. Many of the new political entities no longer supported their armies through taxes, instead relying on granting them land or rents. This meant there was less need for large tax revenues and so the taxation systems decayed. Warfare was common between and within the kingdoms. Slavery declined as the supply weakened, and society became more rural.[F]
What notable Roman figure died in 408?
A: Stilicho

Question: Read this and answer the question

The city's total area is 468.9 square miles (1,214 km2). 164.1 sq mi (425 km2) of this is water and 304.8 sq mi (789 km2) is land. The highest point in the city is Todt Hill on Staten Island, which, at 409.8 feet (124.9 m) above sea level, is the highest point on the Eastern Seaboard south of Maine. The summit of the ridge is mostly covered in woodlands as part of the Staten Island Greenbelt.

In square miles, how much of the city's total area is land?
Answer: 304.8

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?
luminous efficacy