Input: Jehovah%27s Witnesses
Formal discipline is administered by congregation elders. When a baptized member is accused of committing a serious sin—usually cases of sexual misconduct or charges of apostasy for disputing Jehovah's Witness doctrines—a judicial committee is formed to determine guilt, provide help and possibly administer discipline. Disfellowshipping, a form of shunning, is the strongest form of discipline, administered to an offender deemed unrepentant. Contact with disfellowshipped individuals is limited to direct family members living in the same home, and with congregation elders who may invite disfellowshipped persons to apply for reinstatement; formal business dealings may continue if contractually or financially obliged. Witnesses are taught that avoiding social and spiritual interaction with disfellowshipped individuals keeps the congregation free from immoral influence and that "losing precious fellowship with loved ones may help [the shunned individual] to come 'to his senses,' see the seriousness of his wrong, and take steps to return to Jehovah." The practice of shunning may also serve to deter other members from dissident behavior. Members who disassociate (formally resign) are described in Watch Tower Society literature as wicked and are also shunned. Expelled individuals may eventually be reinstated to the congregation if deemed repentant by elders in the congregation in which the disfellowshipping was enforced. Reproof is a lesser form of discipline given formally by a judicial committee to a baptized Witness who is considered repentant of serious sin; the reproved person temporarily loses conspicuous privileges of service, but suffers no restriction of social or spiritual fellowship. Marking, a curtailing of social but not spiritual fellowship, is practiced if a baptized member persists in a course of action regarded as a violation of Bible principles but not a serious sin.[note 4]

What are Jehovah Witnesses taught that avoiding social and spiritual interaction with disfellowshipped individuals does?
Output: keeps the congregation free from immoral influence


Input: Article: Underpinning Houston's land surface are unconsolidated clays, clay shales, and poorly cemented sands up to several miles deep. The region's geology developed from river deposits formed from the erosion of the Rocky Mountains. These sediments consist of a series of sands and clays deposited on decaying organic marine matter, that over time, transformed into oil and natural gas. Beneath the layers of sediment is a water-deposited layer of halite, a rock salt. The porous layers were compressed over time and forced upward. As it pushed upward, the salt dragged surrounding sediments into salt dome formations, often trapping oil and gas that seeped from the surrounding porous sands. The thick, rich, sometimes black, surface soil is suitable for rice farming in suburban outskirts where the city continues to grow.

Now answer this question: The sand and clay deposited onto decaying marine matter transformed into what?

Output: oil and natural gas


Article: At the University of Manchester, a team under the leadership of Tom Kilburn designed and built a machine using the newly developed transistors instead of valves. Their first transistorised computer and the first in the world, was operational by 1953, and a second version was completed there in April 1955. However, the machine did make use of valves to generate its 125 kHz clock waveforms and in the circuitry to read and write on its magnetic drum memory, so it was not the first completely transistorized computer. That distinction goes to the Harwell CADET of 1955, built by the electronics division of the Atomic Energy Research Establishment at Harwell.

Question: Who built the Harwell CADET?
Ans: electronics division of the Atomic Energy Research Establishment at Harwell


The problem: Answer a question about this article:
Original master discs are created by lathe-cutting: a lathe is used to cut a modulated groove into a blank record. The blank records for cutting used to be cooked up, as needed, by the cutting engineer, using what Robert K. Morrison describes as a "metallic soap," containing lead litharge, ozokerite, barium sulfate, montan wax, stearin and paraffin, among other ingredients. Cut "wax" sound discs would be placed in a vacuum chamber and gold-sputtered to make them electrically conductive for use as mandrels in an electroforming bath, where pressing stamper parts were made. Later, the French company Pyral invented a ready-made blank disc having a thin nitro-cellulose lacquer coating (approximately 7 mils thickness on both sides) that was applied to an aluminum substrate. Lacquer cuts result in an immediately playable, or processable, master record. If vinyl pressings are wanted, the still-unplayed sound disc is used as a mandrel for electroforming nickel records that are used for manufacturing pressing stampers. The electroformed nickel records are mechanically separated from their respective mandrels. This is done with relative ease because no actual "plating" of the mandrel occurs in the type of electrodeposition known as electroforming, unlike with electroplating, in which the adhesion of the new phase of metal is chemical and relatively permanent. The one-molecule-thick coating of silver (that was sprayed onto the processed lacquer sound disc in order to make its surface electrically conductive) reverse-plates onto the nickel record's face. This negative impression disc (having ridges in place of grooves) is known as a nickel master, "matrix" or "father." The "father" is then used as a mandrel to electroform a positive disc known as a "mother". Many mothers can be grown on a single "father" before ridges deteriorate beyond effective use. The "mothers" are then used as mandrels for electroforming more negative discs known as "sons". Each "mother" can be used to make many "sons" before deteriorating. The "sons" are then converted into "stampers" by center-punching a spindle hole (which was lost from the lacquer sound disc during initial electroforming of the "father"), and by custom-forming the target pressing profile. This allows them to be placed in the dies of the target (make and model) record press and, by center-roughing, to facilitate the adhesion of the label, which gets stuck onto the vinyl pressing without any glue. In this way, several million vinyl discs can be produced from a single lacquer sound disc. When only a few hundred discs are required, instead of electroforming a "son" (for each side), the "father" is removed of its silver and converted into a stamper. Production by this latter method, known as the "two-step-process" (as it does not entail creation of "sons" but does involve creation of "mothers," which are used for test playing and kept as "safeties" for electroforming future "sons") is limited to a few hundred vinyl pressings. The pressing count can increase if the stamper holds out and the quality of the vinyl is high. The "sons" made during a "three-step" electroforming make better stampers since they don't require silver removal (which reduces some high fidelity because of etching erasing part of the smallest groove modulations) and also because they have a stronger metal structure than "fathers".
What is the limitation of the two step process?
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The answer:
limited to a few hundred vinyl pressings