Input: Read this: While LEDs have the advantage over fluorescent lamps that they do not contain mercury, they may contain other hazardous metals such as lead and arsenic. Regarding the toxicity of LEDs when treated as waste, a study published in 2011 stated: "According to federal standards, LEDs are not hazardous except for low-intensity red LEDs, which leached Pb [lead] at levels exceeding regulatory limits (186 mg/L; regulatory limit: 5). However, according to California regulations, excessive levels of copper (up to 3892 mg/kg; limit: 2500), lead (up to 8103 mg/kg; limit: 1000), nickel (up to 4797 mg/kg; limit: 2000), or silver (up to 721 mg/kg; limit: 500) render all except low-intensity yellow LEDs hazardous."
Question: Which LEDs are considered dangerous by a 2011 study?

Output: low-intensity red


QUES: The Quran most likely existed in scattered written form during Muhammad's lifetime. Several sources indicate that during Muhammad's lifetime a large number of his companions had memorized the revelations. Early commentaries and Islamic historical sources support the above-mentioned understanding of the Quran's early development. The Quran in its present form is generally considered by academic scholars to record the words spoken by Muhammad because the search for variants has not yielded any differences of great significance.[page needed] University of Chicago professor Fred Donner states that "...there was a very early attempt to establish a uniform consonantal text of the Qurʾān from what was probably a wider and more varied group of related texts in early transmission. [...] After the creation of this standardized canonical text, earlier authoritative texts were suppressed, and all extant manuscripts—despite their numerous variants—seem to date to a time after this standard consonantal text was established." Although most variant readings of the text of the Quran have ceased to be transmitted, some still are. There has been no critical text produced on which a scholarly reconstruction of the Quranic text could be based. Historically, controversy over the Quran's content has rarely become an issue, although debates continue on the subject.

Which which university is Fred Donner affiliated?
What is the answer?
ANS: University of Chicago


QUES: For decades, it was the official policy of the Soviet Union to deny the existence of the secret protocol to the Soviet–German Pact. At the behest of Mikhail Gorbachev, Alexander Nikolaevich Yakovlev headed a commission investigating the existence of such a protocol. In December 1989, the commission concluded that the protocol had existed and revealed its findings to the Congress of People's Deputies of the Soviet Union. As a result, the Congress passed the declaration confirming the existence of the secret protocols, condemning and denouncing them. Both successor-states of the pact parties have declared the secret protocols to be invalid from the moment they were signed. The Federal Republic of Germany declared this on September 1, 1989 and the Soviet Union on December 24, 1989, following an examination of the microfilmed copy of the German originals.
Which states have argued that the Soviet-German Pact was invalid from the inception?

ANS: Both successor-states of the pact parties


Though Decca would continue to keep picture budgets lean, it was favored by changing circumstances in the film business, as other studios let their contract actors go in the wake of the 1948 U.S. vs. Paramount Pictures, et al. decision. Leading actors were increasingly free to work where and when they chose, and in 1950 MCA agent Lew Wasserman made a deal with Universal for his client James Stewart that would change the rules of the business. Wasserman's deal gave Stewart a share in the profits of three pictures in lieu of a large salary. When one of those films, Winchester '73, proved to be a hit, the arrangement would become the rule for many future productions at Universal, and eventually at other studios as well.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): What court decision happened in 1950?
Ah, so.. unanswerable


Question: While medieval pageants and festivals such as Corpus Christi were church-sanctioned, Carnival was also a manifestation of medieval folk culture. Many local Carnival customs are claimed to derive from local pre-Christian rituals, such as elaborate rites involving masked figures in the Swabian–Alemannic Fastnacht. However, evidence is insufficient to establish a direct origin from Saturnalia or other ancient festivals. No complete accounts of Saturnalia survive and the shared features of feasting, role reversals, temporary social equality, masks and permitted rule-breaking do not necessarily constitute a coherent festival or link these festivals. These similarities may represent a reservoir of cultural resources that can embody multiple meanings and functions. For example, Easter begins with the resurrection of Jesus, followed by a liminal period and ends with rebirth. Carnival reverses this as King Carnival comes to life, a liminal period follows before his death. Both feasts are calculated by the lunar calendar. Both Jesus and King Carnival may be seen as expiatory figures who make a gift to the people with their deaths. In the case of Jesus, the gift is eternal life in heaven and in the case of King Carnival, the acknowledgement that death is a necessary part of the cycle of life. Besides Christian anti-Judaism, the commonalities between church and Carnival rituals and imagery suggest a common root. Christ's passion is itself grotesque: Since early Christianity Christ is figured as the victim of summary judgement, is tortured and executed by Romans before a Jewish mob ("His blood is on us and on our children!" Matthew 27:24–25). Holy Week processions in Spain include crowds who vociferously insult the figure of Jesus. Irreverence, parody, degradation and laughter at a tragicomic effigy God can be seen as intensifications of the sacred order. In 1466, the Catholic Church under Pope Paul II revieved customs of the Saturnalia carnival: Jews were forced to race naked through the streets of the city of Rome. “Before they were to run, the Jews were richly fed, so as to make the race more difficult for them and at the same time more amusing for spectators. They ran… amid Rome’s taunting shrieks and peals of laughter, while the Holy Father stood upon a richly ornamented balcony and laughed heartily”, an eyewitness reports.
Try to answer this question if possible: What is insufficient to establish a direct origin from ancient festivals to Carnival?
Answer: evidence


Question: With the rapid growth of industrial workers in the auto factories, labor unions such as the American Federation of Labor and the United Auto Workers fought to organize workers to gain them better working conditions and wages. They initiated strikes and other tactics in support of improvements such as the 8-hour day/40-hour work week, increased wages, greater benefits and improved working conditions. The labor activism during those years increased influence of union leaders in the city such as Jimmy Hoffa of the Teamsters and Walter Reuther of the Autoworkers.
Try to answer this question if possible: Who was the labor leader of the Teamsters?
Answer:
Jimmy Hoffa