Article: Works published since 1857 have received alternative catalogue designations instead of opus numbers. The present standard musicological reference for Chopin's works is the Kobylanska Catalogue (usually represented by the initials 'KK'), named for its compiler, the Polish musicologist Krystyna Kobylanska.

Question: What is the shortened reference for the Kobylanska Catalogue?
Ans: KK

Article: A tile mosaic is a digital image made up of individual tiles, arranged in a non-overlapping fashion, e.g. to make a static image on a shower room or bathing pool floor, by breaking the image down into square pixels formed from ceramic tiles (a typical size is 1 in 1 in (25 mm 25 mm), as for example, on the floor of the University of Toronto pool, though sometimes larger tiles such as 2 in 2 in (51 mm 51 mm) are used). These digital images are coarse in resolution and often simply express text, such as the depth of the pool in various places, but some such digital images are used to show a sunset or other beach theme.

Question: What is usually the purpose of a tile mosaic in pools?
Ans: express text

Article: Equivalently, the smallness of the Planck constant reflects the fact that everyday objects and systems are made of a large number of particles. For example, green light with a wavelength of 555 nanometres (the approximate wavelength to which human eyes are most sensitive) has a frequency of 7014540000000000000♠️540 THz (7014540000000000000♠️5401012 Hz). Each photon has an energy E = hf = 6981358000000000000♠️3.581019 J. That is a very small amount of energy in terms of everyday experience, but everyday experience is not concerned with individual photons any more than with individual atoms or molecules. An amount of light compatible with everyday experience is the energy of one mole of photons; its energy can be computed by multiplying the photon energy by the Avogadro constant, NA 7023602200000000000♠️6.0221023 mol1. The result is that green light of wavelength 555 nm has an energy of 7005216000000000000♠️216 kJ/mol, a typical energy of everyday life.

Question: How much energy does a green light of wavelength 555 nm contain?
Ans: 7005216000000000000♠️216 kJ/mol

Article: Marvel counts among its characters such well-known superheroes as Spider-Man, Iron Man, Captain America, Wolverine, Thor, Hulk, Ant-Man, such teams as the Avengers, the Guardians of the Galaxy, the Fantastic Four, the Inhumans and the X-Men, and antagonists such as Doctor Doom, The Enchantress, Green Goblin, Ultron, Doctor Octopus, Thanos, Magneto and Loki. Most of Marvel's fictional characters operate in a single reality known as the Marvel Universe, with locations that mirror real-life cities. Characters such as Spider-Man, the Fantastic Four, the Avengers, Daredevil and Doctor Strange are based in New York City, whereas the X-Men have historically been based in Salem Center, New York and Hulk's stories often have been set in the American Southwest.

Question: Spiderman's fictional city is based off what real American location?
Ans:
New York