Problem: Please answer a question about the following article about Light-emitting diode:
A new style of wafers composed of gallium-nitride-on-silicon (GaN-on-Si) is being used to produce white LEDs using 200-mm silicon wafers. This avoids the typical costly sapphire substrate in relatively small 100- or 150-mm wafer sizes. The sapphire apparatus must be coupled with a mirror-like collector to reflect light that would otherwise be wasted. It is predicted that by 2020, 40% of all GaN LEDs will be made with GaN-on-Si. Manufacturing large sapphire material is difficult, while large silicon material is cheaper and more abundant. LED companies shifting from using sapphire to silicon should be a minimal investment.
What is being used to produce white LEDs?
A: wafers composed of gallium-nitride-on-silicon


Question: Read this and answer the question

Often 'b' & 'p' are interchangeable, for example 'baggage' becomes 'pagas', 'lob' (to throw) becomes 'loopima'. The initial letter 's' is often dropped, for example 'skool' becomes 'kool', 'stool' becomes 'tool'.

What two letters can be replaced with each other a lot of the time in Estonian?
Answer: 'b' & 'p'


Problem: Governments with strong tendencies towards kleptocracy can undermine food security even when harvests are good. Officials often steal state property. In Bihar, India, more than 80% of the subsidized food aid to poor is stolen by corrupt officials. Similarly, food aid is often robbed at gunpoint by governments, criminals, and warlords alike, and sold for a profit. The 20th century is full of many examples of governments undermining the food security of their own nations – sometimes intentionally.
Even if a harvest is good, food security can be crippled when a government has tendencies toward what?
The answer is the following: kleptocracy


In 1872, Russian Alexander Lodygin invented an incandescent light bulb and obtained a Russian patent in 1874. He used as a burner two carbon rods of diminished section in a glass receiver, hermetically sealed, and filled with nitrogen, electrically arranged so that the current could be passed to the second carbon when the first had been consumed. Later he lived in the USA, changed his name to Alexander de Lodyguine and applied and obtained patents for incandescent lamps having chromium, iridium, rhodium, ruthenium, osmium, molybdenum and tungsten filaments, and a bulb using a molybdenum filament was demonstrated at the world fair of 1900 in Paris.
What did Lodygin use as a burner in his lamp?
two carbon rods


Input: Religion in ancient Rome
The same divine agencies who caused disease or harm also had the power to avert it, and so might be placated in advance. Divine consideration might be sought to avoid the inconvenient delays of a journey, or encounters with banditry, piracy and shipwreck, with due gratitude to be rendered on safe arrival or return. In times of great crisis, the Senate could decree collective public rites, in which Rome's citizens, including women and children, moved in procession from one temple to the next, supplicating the gods.

What was expected when the divine intervention benefited the patron?
Output: gratitude


Problem: Please answer a question about the following article about God:
In monotheism and henotheism, God is conceived of as the Supreme Being and principal object of faith. The concept of God as described by theologians commonly includes the attributes of omniscience (infinite knowledge), omnipotence (unlimited power), omnipresence (present everywhere), omnibenevolence (perfect goodness), divine simplicity, and eternal and necessary existence. God is also usually defined as a non-corporeal being without any human biological gender, but the concept of God actively (as opposed to receptively) creating the universe has caused some religions to give "Him" the metaphorical name of "Father". Because God is conceived as not being a corporeal being, God cannot(some say should not) be portrayed in a literal visual image; some religious groups use a man (sometimes old and bearded) to symbolize God because of His deed of creating man's mind in the image of His own.
What type of human is God portrayed as in some religions?
A:
a man (sometimes old and bearded)