input: Please answer the following: Extract the answer to the question from the following context. Question: What is the reticular formation composed of? Context: The SCN projects to a set of areas in the hypothalamus, brainstem, and midbrain that are involved in implementing sleep-wake cycles. An important component of the system is the reticular formation, a group of neuron-clusters scattered diffusely through the core of the lower brain. Reticular neurons send signals to the thalamus, which in turn sends activity-level-controlling signals to every part of the cortex. Damage to the reticular formation can produce a permanent state of coma.
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output: neuron-clusters

input: Please answer the following: Extract the answer to the question from the following context. Question: What did the word apella originally mean? Context: The etymology of the name is uncertain. The spelling (pronounced [a.pol.ln] in Classical Attic) had almost superseded all other forms by the beginning of the common era, but the Doric form Apellon (), is more archaic, derived from an earlier *j. It probably is a cognate to the Doric month Apellaios (), and the offerings apellaia () at the initiation of the young men during the family-festival apellai (). According to some scholars the words are derived from the Doric word apella (), which originally meant "wall," "fence for animals" and later "assembly within the limits of the square." Apella () is the name of the popular assembly in Sparta, corresponding to the ecclesia (). R. S. P. Beekes rejected the connection of the theonym with the noun apellai and suggested a Pre-Greek proto-form *Apalyun.
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output: wall

input: Please answer the following: Extract the answer to the question from the following context. Question: What are viruses? Context: Persistent infections occur because the body is unable to clear the organism after the initial infection. Persistent infections are characterized by the continual presence of the infectious organism, often as latent infection with occasional recurrent relapses of active infection. There are some viruses that can maintain a persistent infection by infecting different cells of the body. Some viruses once acquired never leave the body. A typical example is the herpes virus, which tends to hide in nerves and become reactivated when specific circumstances arise.
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output: organism

input: Please answer the following: Extract the answer to the question from the following context. Question: The starting wavelength for green light is what? Context: "Green" in modern European languages corresponds to about 520570 nm, but many historical and non-European languages make other choices, e.g. using a term for the range of ca. 450530 nm ("blue/green") and another for ca. 530590 nm ("green/yellow").[citation needed] In the comparative study of color terms in the world's languages, green is only found as a separate category in languages with the fully developed range of six colors (white, black, red, green, yellow, and blue), or more rarely in systems with five colors (white, red, yellow, green, and black/blue). (See distinction of green from blue) These languages have introduced supplementary vocabulary to denote "green", but these terms are recognizable as recent adoptions that are not in origin color terms (much like the English adjective orange being in origin not a color term but the name of a fruit). Thus, the Thai word besides meaning "green" also means "rank" and "smelly" and holds other unpleasant associations.
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output:
520