Problem: Please answer a question about the following article about Green:
Lasers emitting in the green part of the spectrum are widely available to the general public in a wide range of output powers. Green laser pointers outputting at 532 nm (563.5 THz) are relatively inexpensive compared to other wavelengths of the same power, and are very popular due to their good beam quality and very high apparent brightness. The most common green lasers use diode pumped solid state (DPSS) technology to create the green light. An infrared laser diode at 808 nm is used to pump a crystal of neodymium-doped yttrium vanadium oxide (Nd:YVO4) or neodymium-doped yttrium aluminium garnet (Nd:YAG) and induces it to emit 281.76 THz (1064 nm). This deeper infrared light is then passed through another crystal containing potassium, titanium and phosphorus (KTP), whose non-linear properties generate light at a frequency that is twice that of the incident beam (563.5 THz); in this case corresponding to the wavelength of 532 nm ("green"). Other green wavelengths are also available using DPSS technology ranging from 501 nm to 543 nm. Green wavelengths are also available from gas lasers, including the helium–neon laser (543 nm), the Argon-ion laser (514 nm) and the Krypton-ion laser (521 nm and 531 nm), as well as liquid dye lasers. Green lasers have a wide variety of applications, including pointing, illumination, surgery, laser light shows, spectroscopy, interferometry, fluorescence, holography, machine vision, non-lethal weapons and bird control.
What type of technology is used in the most common green lasers?
A: diode pumped solid state
Problem: Please answer a question about the following article about Iran:
Economic sanctions against Iran, such as the embargo against Iranian crude oil, have affected the economy. Sanctions have led to a steep fall in the value of the rial, and as of April 2013 one US dollar is worth 36,000 rial, compared with 16,000 in early 2012. Following a successful implementation of the 2015 nuclear and sanctions relief deal, the resulting benefits might not be distributed evenly across the Iranian economy as political elites such as the Islamic Revolutionary Guard Corps have garnered more resources and economic interests.
What economic sanction against Iranian crude oil has adversely affected the Iranian economy?
A: embargo
Problem: Please answer a question about the following article about Child labour:
There were even Verdingkinder auctions where children were handed over to the farmer asking the least amount of money from the authorities, thus securing cheap labour for his farm and relieving the authority from the financial burden of looking after the children. In the 1930s 20% of all agricultural labourers in the Canton of Bern were children below the age of 15. Swiss municipality guardianship authorities acted so, commonly tolerated by federal authorities, to the 1960s, not all of them of course, but usually communities affected of low taxes in some Swiss cantons Swiss historian Marco Leuenberger investigated, that in 1930 there were some 35,000 indentured children, and between 1920 and 1970 more than 100,000 are believed to have been placed with families or homes. 10,000 Verdingkinder are still alive. Therefore, the so-called Wiedergutmachungsinitiative was started in April 2014. In April 2014 the collection of targeted at least authenticated 100,000 signatures of Swiss citizens has started, and still have to be collected to October 2015.
How many Swiss citizen signatures were collected?
A: 100,000
Problem: Please answer a question about the following article about Tucson, Arizona:
In general, Tucson and Pima County support the Democratic Party, as opposed the state's largest metropolitan area, Phoenix, which usually supports the Republican Party. Congressional redistricting in 2013, following the publication of the 2010 Census, divided the Tucson area into three Federal Congressional districts (the first, second and third of Arizona). The city center is in the 3rd District, represented by Raul Grijalva, a Democrat, since 2003, while the more affluent residential areas to the south and east are in the 2nd District, represented by Republican Martha McSally since 2015, and the exurbs north and west between Tucson and Phoenix in the 3rd District are represented by Democrat Ann Kirkpatrick since 2008. The United States Postal Service operates post offices in Tucson. The Tucson Main Post Office is located at 1501 South Cherrybell Stravenue.
Which political party does Phoenix usually support?
A:
Republican