In this task, you are given a question and a context passage. You have to answer the question based on the given passage.

[EX Q]: What needs consistency?, Context: The simplest valve gears give events of fixed length during the engine cycle and often make the engine rotate in only one direction. Most however have a reversing mechanism which additionally can provide means for saving steam as speed and momentum are gained by gradually "shortening the cutoff" or rather, shortening the admission event; this in turn proportionately lengthens the expansion period. However, as one and the same valve usually controls both steam flows, a short cutoff at admission adversely affects the exhaust and compression periods which should ideally always be kept fairly constant; if the exhaust event is too brief, the totality of the exhaust steam cannot evacuate the cylinder, choking it and giving excessive compression ("kick back").[citation needed]
[EX A]: exhaust and compression periods

[EX Q]: What does hyem mean?, Context: "Bairn" and "hyem", meaning "child" and "home", respectively, are examples of Geordie words with origins in Scandinavia; barn and hjem are the corresponding modern Norwegian and Danish words. Some words used in the Geordie dialect are used elsewhere in the Northern United Kingdom. The words "bonny" (meaning "pretty"), "howay" ("come on"), "stot" ("bounce") and "hadaway" ("go away" or "you're kidding"), all appear to be used in Scots; "aye" ("yes") and "nowt" (IPA://nat/, rhymes with out,"nothing") are used elsewhere in Northern England. Many words, however, appear to be used exclusively in Newcastle and the surrounding area, such as "Canny" (a versatile word meaning "good", "nice" or "very"), "hacky" ("dirty"), "netty" ("toilet"), "hoy" ("throw", from the Dutch gooien, via West Frisian), "hockle" ("spit").
[EX A]: home

[EX Q]: While the intention of boycotts may be to limit child labor, what do some fear would be the potential outcome?, Context: Concerns have often been raised over the buying public's moral complicity in purchasing products assembled or otherwise manufactured in developing countries with child labour. However, others have raised concerns that boycotting products manufactured through child labour may force these children to turn to more dangerous or strenuous professions, such as prostitution or agriculture. For example, a UNICEF study found that after the Child Labour Deterrence Act was introduced in the US, an estimated 50,000 children were dismissed from their garment industry jobs in Bangladesh, leaving many to resort to jobs such as "stone-crushing, street hustling, and prostitution", jobs that are "more hazardous and exploitative than garment production". The study suggests that boycotts are "blunt instruments with long-term consequences, that can actually harm rather than help the children involved."
[EX A]:
force these children to turn to more dangerous or strenuous professions