Problem: Extract the answer to the question from the following context. Question: Why would a vowel whether is was short tense or not, why can't you say it can be use in particular alone to find alterations in quality? Context: Vowel length is not always considered a distinctive feature in Dutch phonology, because it normally co-occurs with changes in vowel quality. One feature or the other may be considered redundant, and some phonemic analyses prefer to treat it as an opposition of tenseness. However, even if not considered part of the phonemic opposition, the long/tense vowels are still realised as phonetically longer than their short counterparts. The changes in vowel quality are also not always the same in all dialects, and in some there may be little difference at all, with length remaining the primary distinguishing feature. And while it is true that older words always pair vowel length with a change in vowel quality, new loanwords have reintroduced phonemic oppositions of length. Compare zonne(n) [zn] ("suns") versus zone [zn] ("zone") versus zonen [zon(n)] ("sons"), or kroes [krus] ("mug") versus cruise [krus] ("cruise").

A: because it normally co-occurs with changes in vowel quality

Problem: Given the question: Extract the answer to the question from the following context. Question: When was a court case seperated? Context: In Terry v. Ohio (1968) the court divided seizure into two parts, the investigatory stop and arrest. The court further held that during an investigatory stop a police officer's search " [is] confined to what [is] minimally necessary to determine whether [a suspect] is armed, and the intrusion, which [is] made for the sole purpose of protecting himself and others nearby, [is] confined to ascertaining the presence of weapons" (U.S. Supreme Court). Before Terry, every police encounter constituted an arrest, giving the police officer the full range of search authority. Search authority during a Terry stop (investigatory stop) is limited to weapons only.
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The answer is:
Terry v. Ohio (1968)

input question: Extract the answer to the question from the following context. Question: Up to 30,000 visitors were expected annually, but all after what event? Context: The UK government has spent 250 million in the construction of the island's airport. Expected to be fully operational early 2016, it is expected to help the island towards self-sufficiency and encourage economic development, reducing dependence on British government aid. The airport is also expected to kick start the tourism industry, with up to 30,000 visitors expected annually. As of August, 2015 ticketing was postponed until an airline could be firmly designated.???
output answer: the construction of the island's airport

Extract the answer to the question from the following context. Question: What dialect did this earlier? Context: This change is interesting from a sociolinguistic point of view because it has apparently happened relatively recently, in the 1970s, and was pioneered by older well-educated women from the upper middle classes. The lowering of the diphthongs has long been current in many Dutch dialects, and is comparable to the English Great Vowel Shift, and the diphthongisation of long high vowels in Modern High German, which centuries earlier reached the state now found in Polder Dutch. Stroop theorizes that the lowering of open-mid to open diphthongs is a phonetically "natural" and inevitable development and that Dutch, after having diphthongised the long high vowels like German and English, "should" have lowered the diphthongs like German and English as well.
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Answer: Polder

Q: Extract the answer to the question from the following context. Question: Are there more denominations listed or congregations in the National Presbyterian Church? Context: The biggest Presbyterian church is the National Presbyterian Church in Mexico (Iglesia Nacional Presbiteriana de Mexico), which has around 2,500,000 members and associates and 3000 congregations, but there are other small denominations like the Associate Reformed Presbyterian Church in Mexico which was founded in 1875 by the Associate Reformed Church in North America. The Independent Presbyterian Church and the Presbyterian Reformed Church in Mexico, the National Conservative Presbyterian Church in Mexico are existing churches in the Reformed tradition.
A: congregations

[Q]: Extract the answer to the question from the following context. Question: When might a wire protocol be used? Context: Many other databases have application software that accesses the database on behalf of end-users, without exposing the DBMS interface directly. Application programmers may use a wire protocol directly, or more likely through an application programming interface. Database designers and database administrators interact with the DBMS through dedicated interfaces to build and maintain the applications' databases, and thus need some more knowledge and understanding about how DBMSs operate and the DBMSs' external interfaces and tuning parameters.
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[A]:
application software that accesses the database on behalf of end-users