Input: Read this: 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.
Question: Who rejected an investigation into whether or not the Soviet-German Pact happened?

Output: unanswerable


QUES: Multi-layer printed circuit boards have trace layers inside the board. This is achieved by laminating a stack of materials in a press by applying pressure and heat for a period of time. This results in an inseparable one piece product. For example, a four-layer PCB can be fabricated by starting from a two-sided copper-clad laminate, etch the circuitry on both sides, then laminate to the top and bottom pre-preg and copper foil. It is then drilled, plated, and etched again to get traces on top and bottom layers.

A five-layer PCB can be fabricated how?
What is the answer?
ANS: unanswerable


QUES: Bacteria (i/bækˈtɪəriə/; singular: bacterium) constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria have a number of shapes, ranging from spheres to rods and spirals. Bacteria were among the first life forms to appear on Earth, and are present in most of its habitats. Bacteria inhabit soil, water, acidic hot springs, radioactive waste, and the deep portions of Earth's crust. Bacteria also live in symbiotic and parasitic relationships with plants and animals. They are also known to have flourished in manned spacecraft.
When is the typical lenght  for bacteria?

ANS: few micrometres


On January 9, 1957, Karachay Autonomous Oblast and Chechen-Ingush Autonomous Soviet Socialist Republic were restored by Khrushchev and they were transferred from the Georgian SSR back to the Russian SFSR.
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): When was the Chechen-Ingush Autonomous Soviet Socialist Republic transferred from the Georgian SSR?
Ah, so.. January 9, 1957


Question: 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.
Try to answer this question if possible: What is the THz of the helium-neon laser?
Answer: unanswerable


Question:  In Methodism, Mary is honored as the Mother of God. Methodists do not have any additional teachings on the Virgin Mary except from what is mentioned in Scripture and the ecumenical Creeds. As such, Methodists believe that Mary was conceived in her womb through the Holy Ghost and accept the doctrine of the Virgin Birth, although they, along with Orthodox Christians and other Protestant Christians, reject the doctrine of the Immaculate Conception. John Wesley, the principal founder of the Methodist movement within the Church of England, believed that Mary "continued a pure and unspotted virgin", thus upholding the doctrine of the perpetual virginity of Mary. Contemporary Methodism does hold that Mary was a virgin before, during, and immediately after the birth of Christ. In addition, some Methodists also hold the doctrine of the Assumption of Mary as a pious opinion.
Try to answer this question if possible: Which doctrine about Mary do Methodists reject?
Answer:
the Immaculate Conception